Tag Archives: matlab
matlab2023a安装Simscape Multibody Link插件失败
采用命令
>> installaddon(‘smlink.r2023a.win64.zip’)
安装时,提示:
Installing smlink.r2023a.win64…
错误使用 installaddon
Archive architecture () does not match the MATLAB architecture (win64).
Installation of smlink.r2023a.win64 failed.采用命令
>> installaddon(‘smlink.r2023a.win64.zip’)
安装时,提示:
Installing smlink.r2023a.win64…
错误使用 installaddon
Archive architecture () does not match the MATLAB architecture (win64).
Installation of smlink.r2023a.win64 failed. 采用命令
>> installaddon(‘smlink.r2023a.win64.zip’)
安装时,提示:
Installing smlink.r2023a.win64…
错误使用 installaddon
Archive architecture () does not match the MATLAB architecture (win64).
Installation of smlink.r2023a.win64 failed. 联合仿真;安装插件 MATLAB Answers — New Questions
Delay balancing error using R2023b, but have not experienced this in R2017b
Hello,
I have currenlty updated my Simulink to R2023b from R2017b. In the past I have been abe to successfully build my models through the HDL workflow advisor or by script with no issues.
Since I have upgraded, to R2023b I am unable to build, as I receive the following error;
"Delay balancing unsuccessful because an extra 27 cycles of latency introduced by optimizations in the feedback loop cannot be offset using design delays for the loop latency budget"
What I do not understand is how the same Simulink project can build successfuilly with R2017b, but does not with R2023b?
I have done some breif reading and am aware of the suggestions, but I cannot help but think this is a settings related problem in the configuration parameters.
I have compared settings with a colleagues R2017b, and there are differences in relation to new settings that have been set in R2023b which do not exist in R2017b.
Can anyone confirm this could be as simple as that, or do I need to introduce latency with delay blocks?
It’s hard to understand why the model would need to chage.
I can confirm the model is using clock-rate pipelining.
RegardsHello,
I have currenlty updated my Simulink to R2023b from R2017b. In the past I have been abe to successfully build my models through the HDL workflow advisor or by script with no issues.
Since I have upgraded, to R2023b I am unable to build, as I receive the following error;
"Delay balancing unsuccessful because an extra 27 cycles of latency introduced by optimizations in the feedback loop cannot be offset using design delays for the loop latency budget"
What I do not understand is how the same Simulink project can build successfuilly with R2017b, but does not with R2023b?
I have done some breif reading and am aware of the suggestions, but I cannot help but think this is a settings related problem in the configuration parameters.
I have compared settings with a colleagues R2017b, and there are differences in relation to new settings that have been set in R2023b which do not exist in R2017b.
Can anyone confirm this could be as simple as that, or do I need to introduce latency with delay blocks?
It’s hard to understand why the model would need to chage.
I can confirm the model is using clock-rate pipelining.
Regards Hello,
I have currenlty updated my Simulink to R2023b from R2017b. In the past I have been abe to successfully build my models through the HDL workflow advisor or by script with no issues.
Since I have upgraded, to R2023b I am unable to build, as I receive the following error;
"Delay balancing unsuccessful because an extra 27 cycles of latency introduced by optimizations in the feedback loop cannot be offset using design delays for the loop latency budget"
What I do not understand is how the same Simulink project can build successfuilly with R2017b, but does not with R2023b?
I have done some breif reading and am aware of the suggestions, but I cannot help but think this is a settings related problem in the configuration parameters.
I have compared settings with a colleagues R2017b, and there are differences in relation to new settings that have been set in R2023b which do not exist in R2017b.
Can anyone confirm this could be as simple as that, or do I need to introduce latency with delay blocks?
It’s hard to understand why the model would need to chage.
I can confirm the model is using clock-rate pipelining.
Regards delay balancing MATLAB Answers — New Questions
Signal Analyzer Lowpass filter overshoots input signal
Hi everyone,
i am trying to apply a lowpass filter from the signal analyzer app to a simulink signal.
As you can see in the screenshot, i am trying to allow frequencies only below 5 cycles/min – other than that i am using the default parameters.
When i apply the filter to the signal and compare it to the original signal, the filtered signal overshoots the original one.
As i am new to filtering, i would like to ask if there is a way to filter the signal without overshooting?
Thanks for any helpHi everyone,
i am trying to apply a lowpass filter from the signal analyzer app to a simulink signal.
As you can see in the screenshot, i am trying to allow frequencies only below 5 cycles/min – other than that i am using the default parameters.
When i apply the filter to the signal and compare it to the original signal, the filtered signal overshoots the original one.
As i am new to filtering, i would like to ask if there is a way to filter the signal without overshooting?
Thanks for any help Hi everyone,
i am trying to apply a lowpass filter from the signal analyzer app to a simulink signal.
As you can see in the screenshot, i am trying to allow frequencies only below 5 cycles/min – other than that i am using the default parameters.
When i apply the filter to the signal and compare it to the original signal, the filtered signal overshoots the original one.
As i am new to filtering, i would like to ask if there is a way to filter the signal without overshooting?
Thanks for any help signal processing, lowpass filter, signal analyzer MATLAB Answers — New Questions
How to convert Simulink model into Matlab script .m file?
dear all,
any ideas on how to generate .m matlab script and C code from a given simulink file?
Thanksdear all,
any ideas on how to generate .m matlab script and C code from a given simulink file?
Thanks dear all,
any ideas on how to generate .m matlab script and C code from a given simulink file?
Thanks simulink, code generation MATLAB Answers — New Questions
data synchronization between two control blocks in simulink
I have modelled control algorithm in simulink that takes inputs from ADC. The total design is divided into two blocks, one is ADC block that sends trigger signals to ADC and acquires the data. The other is the control block. The sampling time for control block is 20KHz . I propose to implement these blocks in FPGA with one external clock of 50MHz. Here are my questions:
The ADC(external) is a simultaneous sampling ADC, which requires bunch of control signals to acquire data. I need to ensure that data is available to control model, every 50us (20KHz), I do not know how to fix the sampling time requrement for this model (ADC block) in simulink.
The code generator in simulink generates verilog code with clock as the input for the model. What is the difference between clock and sampling time? Should I connect this input to 50MHz?
Since ADC block is much faster than control block, should I use FIFO or rate transition block to synchronize them. Would it be necessary?
Can I just use one clock 50MHz, derive enable signals using counter and control the update rates of these two blocks? If yes how do do it in simulink?I have modelled control algorithm in simulink that takes inputs from ADC. The total design is divided into two blocks, one is ADC block that sends trigger signals to ADC and acquires the data. The other is the control block. The sampling time for control block is 20KHz . I propose to implement these blocks in FPGA with one external clock of 50MHz. Here are my questions:
The ADC(external) is a simultaneous sampling ADC, which requires bunch of control signals to acquire data. I need to ensure that data is available to control model, every 50us (20KHz), I do not know how to fix the sampling time requrement for this model (ADC block) in simulink.
The code generator in simulink generates verilog code with clock as the input for the model. What is the difference between clock and sampling time? Should I connect this input to 50MHz?
Since ADC block is much faster than control block, should I use FIFO or rate transition block to synchronize them. Would it be necessary?
Can I just use one clock 50MHz, derive enable signals using counter and control the update rates of these two blocks? If yes how do do it in simulink? I have modelled control algorithm in simulink that takes inputs from ADC. The total design is divided into two blocks, one is ADC block that sends trigger signals to ADC and acquires the data. The other is the control block. The sampling time for control block is 20KHz . I propose to implement these blocks in FPGA with one external clock of 50MHz. Here are my questions:
The ADC(external) is a simultaneous sampling ADC, which requires bunch of control signals to acquire data. I need to ensure that data is available to control model, every 50us (20KHz), I do not know how to fix the sampling time requrement for this model (ADC block) in simulink.
The code generator in simulink generates verilog code with clock as the input for the model. What is the difference between clock and sampling time? Should I connect this input to 50MHz?
Since ADC block is much faster than control block, should I use FIFO or rate transition block to synchronize them. Would it be necessary?
Can I just use one clock 50MHz, derive enable signals using counter and control the update rates of these two blocks? If yes how do do it in simulink? hdl coder, simulink MATLAB Answers — New Questions
How to do correction in this piece of code?
clear;clc
u=[30 50 60 80];% [Theta1 Theta2 Phi1 Phi2] four angles
M=length(u);
P=M/2; % No. of sources
f=1e9;% frequency
c=3e8;% Speed of light
l=c/f;% lambda
k=(2*pi)/l;% wavenumber
N=8;% Number of antennas
n=0:N-1;
phi_n=2*pi*n/N;
phi_n = rad2deg(phi_n);
d_circular=l/2;% spacing b/w antennas
circumference = N*d_circular;
a=circumference/(2*pi);% radius
% AF = sum(exp(-i*k*a*sin(theta(m))*(cos(phi(p)-phi_n))));
% x = abs(AF(m,p))*sin(theta(m))*cos(phi(p));
% y = abs(AF(m,p))*sin(theta(m))*sin(phi(p));
% z = abs(AF(m,p))*cos(theta(m));
% loops method:
for sourceNo=1:P
for m=0:N-1
AF(m+1,sourceNo) = exp(-1i*k*a*sind(u(1:2)-phi_n(m+1)));
x(m+1,sourceNo) = abs (AF(m+1,sourceNo))*sin(u(1:2))*cos(u(3:4));
y(m+1,sourceNo) = abs(AF(m+1,sourceNo))*sin(u(1:2))*sin(u(3:4));
z(m+1,sourceNo) = abs(AF(m+1,sourceNo))*cos(u(1:2));
end
end
AF
x
y
zclear;clc
u=[30 50 60 80];% [Theta1 Theta2 Phi1 Phi2] four angles
M=length(u);
P=M/2; % No. of sources
f=1e9;% frequency
c=3e8;% Speed of light
l=c/f;% lambda
k=(2*pi)/l;% wavenumber
N=8;% Number of antennas
n=0:N-1;
phi_n=2*pi*n/N;
phi_n = rad2deg(phi_n);
d_circular=l/2;% spacing b/w antennas
circumference = N*d_circular;
a=circumference/(2*pi);% radius
% AF = sum(exp(-i*k*a*sin(theta(m))*(cos(phi(p)-phi_n))));
% x = abs(AF(m,p))*sin(theta(m))*cos(phi(p));
% y = abs(AF(m,p))*sin(theta(m))*sin(phi(p));
% z = abs(AF(m,p))*cos(theta(m));
% loops method:
for sourceNo=1:P
for m=0:N-1
AF(m+1,sourceNo) = exp(-1i*k*a*sind(u(1:2)-phi_n(m+1)));
x(m+1,sourceNo) = abs (AF(m+1,sourceNo))*sin(u(1:2))*cos(u(3:4));
y(m+1,sourceNo) = abs(AF(m+1,sourceNo))*sin(u(1:2))*sin(u(3:4));
z(m+1,sourceNo) = abs(AF(m+1,sourceNo))*cos(u(1:2));
end
end
AF
x
y
z clear;clc
u=[30 50 60 80];% [Theta1 Theta2 Phi1 Phi2] four angles
M=length(u);
P=M/2; % No. of sources
f=1e9;% frequency
c=3e8;% Speed of light
l=c/f;% lambda
k=(2*pi)/l;% wavenumber
N=8;% Number of antennas
n=0:N-1;
phi_n=2*pi*n/N;
phi_n = rad2deg(phi_n);
d_circular=l/2;% spacing b/w antennas
circumference = N*d_circular;
a=circumference/(2*pi);% radius
% AF = sum(exp(-i*k*a*sin(theta(m))*(cos(phi(p)-phi_n))));
% x = abs(AF(m,p))*sin(theta(m))*cos(phi(p));
% y = abs(AF(m,p))*sin(theta(m))*sin(phi(p));
% z = abs(AF(m,p))*cos(theta(m));
% loops method:
for sourceNo=1:P
for m=0:N-1
AF(m+1,sourceNo) = exp(-1i*k*a*sind(u(1:2)-phi_n(m+1)));
x(m+1,sourceNo) = abs (AF(m+1,sourceNo))*sin(u(1:2))*cos(u(3:4));
y(m+1,sourceNo) = abs(AF(m+1,sourceNo))*sin(u(1:2))*sin(u(3:4));
z(m+1,sourceNo) = abs(AF(m+1,sourceNo))*cos(u(1:2));
end
end
AF
x
y
z how to remove error, error, changes required MATLAB Answers — New Questions
how to plot a POINTING POINTER correctly
i’d like to add a ‘►’ in annotation like tihs:
figure(1) ; an = annotation(‘textbox’,[0.5,0.5,0.05,0.05],’String’,’ ►’,’FitBoxToText’,’on’);
and if such command is typed in command window, it works well like tihs
but ,when i run such a ‘.m’ file , the output become this likei’d like to add a ‘►’ in annotation like tihs:
figure(1) ; an = annotation(‘textbox’,[0.5,0.5,0.05,0.05],’String’,’ ►’,’FitBoxToText’,’on’);
and if such command is typed in command window, it works well like tihs
but ,when i run such a ‘.m’ file , the output become this like i’d like to add a ‘►’ in annotation like tihs:
figure(1) ; an = annotation(‘textbox’,[0.5,0.5,0.05,0.05],’String’,’ ►’,’FitBoxToText’,’on’);
and if such command is typed in command window, it works well like tihs
but ,when i run such a ‘.m’ file , the output become this like annotation, 字符显示 MATLAB Answers — New Questions
MATLAB Online not working
plz help!!
i am starting MATLAB Online but its not starting .
it shows a message "there is an issue with matlab. if problem persist contact technical support."plz help!!
i am starting MATLAB Online but its not starting .
it shows a message "there is an issue with matlab. if problem persist contact technical support." plz help!!
i am starting MATLAB Online but its not starting .
it shows a message "there is an issue with matlab. if problem persist contact technical support." matlab, matlab online MATLAB Answers — New Questions
How to display the matrix as not 10^3 but as 10^1 for the values in the matrix
Y11=-((482.34i*10^-6));
Y22=-1.99i;
Y33=-2.14i;
Y44=-4.222i;
Y55=-7.761i;
Y66=(416.67*10^-6)- ((57.81*10^-9)*i);
Y77=(166.6*10^-9)- ((166.6*10^-6)*i);
Y12=0;
Y13=0;
Y14=0;
Y15=0;
Y16=0;
Y17=0;
Y21=0;
Y23=0;
Y24=1.351i;
Y25=0.581i;
Y26=0;
Y27=0i;
Y31=0;
Y32=0;
Y34=0;
Y35=0;
Y36=0;
Y37=0;
Y41=0;
Y42=1.3551i;
Y43=Y34;
Y45=0.871i;
Y46=0;
Y47=0;
Y51=Y15;
Y52=Y25;
Y53=0;
Y54=Y45;
Y56=0;
Y57=0;
Y61=0;
Y62=0;
Y63=0;
Y64=0;
Y65=Y56;
Y67=0;
Y71=0;
Y72=0;
Y73=0;
Y74=0;
Y75=0;
Y76=0;
% Ybus matrix
Ybus0 = [Y11,Y12,Y13,Y14,Y15,Y16,Y17; Y21,Y22,Y23,Y24,Y25,Y26,Y27; Y31,Y32,Y33,Y34,Y35,Y36,Y37; Y41,Y42,Y43,Y44,Y45,Y46,Y47; Y51,Y52,Y53,Y54,Y55,Y56,Y57; Y61,Y62,Y63,Y64,Y65,Y66,Y67; Y71,Y72,Y73,Y74,Y75,Y76,Y77,]
%convert Ybus to Zbus
Zbus0=inv(Ybus0);
How to display the matrix as 10^1?Y11=-((482.34i*10^-6));
Y22=-1.99i;
Y33=-2.14i;
Y44=-4.222i;
Y55=-7.761i;
Y66=(416.67*10^-6)- ((57.81*10^-9)*i);
Y77=(166.6*10^-9)- ((166.6*10^-6)*i);
Y12=0;
Y13=0;
Y14=0;
Y15=0;
Y16=0;
Y17=0;
Y21=0;
Y23=0;
Y24=1.351i;
Y25=0.581i;
Y26=0;
Y27=0i;
Y31=0;
Y32=0;
Y34=0;
Y35=0;
Y36=0;
Y37=0;
Y41=0;
Y42=1.3551i;
Y43=Y34;
Y45=0.871i;
Y46=0;
Y47=0;
Y51=Y15;
Y52=Y25;
Y53=0;
Y54=Y45;
Y56=0;
Y57=0;
Y61=0;
Y62=0;
Y63=0;
Y64=0;
Y65=Y56;
Y67=0;
Y71=0;
Y72=0;
Y73=0;
Y74=0;
Y75=0;
Y76=0;
% Ybus matrix
Ybus0 = [Y11,Y12,Y13,Y14,Y15,Y16,Y17; Y21,Y22,Y23,Y24,Y25,Y26,Y27; Y31,Y32,Y33,Y34,Y35,Y36,Y37; Y41,Y42,Y43,Y44,Y45,Y46,Y47; Y51,Y52,Y53,Y54,Y55,Y56,Y57; Y61,Y62,Y63,Y64,Y65,Y66,Y67; Y71,Y72,Y73,Y74,Y75,Y76,Y77,]
%convert Ybus to Zbus
Zbus0=inv(Ybus0);
How to display the matrix as 10^1? Y11=-((482.34i*10^-6));
Y22=-1.99i;
Y33=-2.14i;
Y44=-4.222i;
Y55=-7.761i;
Y66=(416.67*10^-6)- ((57.81*10^-9)*i);
Y77=(166.6*10^-9)- ((166.6*10^-6)*i);
Y12=0;
Y13=0;
Y14=0;
Y15=0;
Y16=0;
Y17=0;
Y21=0;
Y23=0;
Y24=1.351i;
Y25=0.581i;
Y26=0;
Y27=0i;
Y31=0;
Y32=0;
Y34=0;
Y35=0;
Y36=0;
Y37=0;
Y41=0;
Y42=1.3551i;
Y43=Y34;
Y45=0.871i;
Y46=0;
Y47=0;
Y51=Y15;
Y52=Y25;
Y53=0;
Y54=Y45;
Y56=0;
Y57=0;
Y61=0;
Y62=0;
Y63=0;
Y64=0;
Y65=Y56;
Y67=0;
Y71=0;
Y72=0;
Y73=0;
Y74=0;
Y75=0;
Y76=0;
% Ybus matrix
Ybus0 = [Y11,Y12,Y13,Y14,Y15,Y16,Y17; Y21,Y22,Y23,Y24,Y25,Y26,Y27; Y31,Y32,Y33,Y34,Y35,Y36,Y37; Y41,Y42,Y43,Y44,Y45,Y46,Y47; Y51,Y52,Y53,Y54,Y55,Y56,Y57; Y61,Y62,Y63,Y64,Y65,Y66,Y67; Y71,Y72,Y73,Y74,Y75,Y76,Y77,]
%convert Ybus to Zbus
Zbus0=inv(Ybus0);
How to display the matrix as 10^1? matlab MATLAB Answers — New Questions
I want to do the same process with this code also
I asked a question at URL: https://www.mathworks.com/matlabcentral/answers/2113451-i-tried-this-code-but-it-gives-me-an-error.
@voss
You solved my problem. Now I want to solve it just like that but that was one dimensional problem i.e., only one angle "Theta" was associated with one far field source i.e., the angle of elevation only i.e., the two sources were having 2 angles. But its a two dimensional case. i.e., here each source has two angles i.e., angle of elevation and angle of azimuth i.e., the two sources have 4 angles now. If I take them in vecor u, it will be like this: u=[30 50 65 80]; where 1st two angles (i.e., 30 and 50) are for 1st far field source and the last two angles (i.e., 65 and 80) are for the 2nd far filed source. so the formula now has both Theta and Phi. So now I want to put them in those formulas given below and the number of antennas ara again 8. The 3D Array Factor formula is given in the attachment. I tried but in vain.
clear;clc
f=1e9;% frequency
c=3e8;% Speed of light
l=c/f;% lambda
k=(2*pi)/l;% wavenumber
N=8;% Number of antennas
n=0:N-1;
phi_n=2*pi*n/N;
phi=-pi:pi/18:pi;
theta=0:pi/18:pi/2;
u=[30 50 60 80];% four angles
M=length(u);%M=length(theta);
P=length(phi);
d_circular=l/2;% spacing b/w antennas
circumference = N*d_circular;
a=circumference/(2*pi);% radius
AF(m,p)=sum(exp(-i*k*a*sin(theta(m))*(cos(phi(p)-phi_n))));
x(m,p)=abs(AF(m,p))*sin(theta(m))*cos(phi(p));
y(m,p)=abs(AF(m,p))*sin(theta(m))*sin(phi(p));
z(m,p)=abs(AF(m,p))*cos(theta(m));I asked a question at URL: https://www.mathworks.com/matlabcentral/answers/2113451-i-tried-this-code-but-it-gives-me-an-error.
@voss
You solved my problem. Now I want to solve it just like that but that was one dimensional problem i.e., only one angle "Theta" was associated with one far field source i.e., the angle of elevation only i.e., the two sources were having 2 angles. But its a two dimensional case. i.e., here each source has two angles i.e., angle of elevation and angle of azimuth i.e., the two sources have 4 angles now. If I take them in vecor u, it will be like this: u=[30 50 65 80]; where 1st two angles (i.e., 30 and 50) are for 1st far field source and the last two angles (i.e., 65 and 80) are for the 2nd far filed source. so the formula now has both Theta and Phi. So now I want to put them in those formulas given below and the number of antennas ara again 8. The 3D Array Factor formula is given in the attachment. I tried but in vain.
clear;clc
f=1e9;% frequency
c=3e8;% Speed of light
l=c/f;% lambda
k=(2*pi)/l;% wavenumber
N=8;% Number of antennas
n=0:N-1;
phi_n=2*pi*n/N;
phi=-pi:pi/18:pi;
theta=0:pi/18:pi/2;
u=[30 50 60 80];% four angles
M=length(u);%M=length(theta);
P=length(phi);
d_circular=l/2;% spacing b/w antennas
circumference = N*d_circular;
a=circumference/(2*pi);% radius
AF(m,p)=sum(exp(-i*k*a*sin(theta(m))*(cos(phi(p)-phi_n))));
x(m,p)=abs(AF(m,p))*sin(theta(m))*cos(phi(p));
y(m,p)=abs(AF(m,p))*sin(theta(m))*sin(phi(p));
z(m,p)=abs(AF(m,p))*cos(theta(m)); I asked a question at URL: https://www.mathworks.com/matlabcentral/answers/2113451-i-tried-this-code-but-it-gives-me-an-error.
@voss
You solved my problem. Now I want to solve it just like that but that was one dimensional problem i.e., only one angle "Theta" was associated with one far field source i.e., the angle of elevation only i.e., the two sources were having 2 angles. But its a two dimensional case. i.e., here each source has two angles i.e., angle of elevation and angle of azimuth i.e., the two sources have 4 angles now. If I take them in vecor u, it will be like this: u=[30 50 65 80]; where 1st two angles (i.e., 30 and 50) are for 1st far field source and the last two angles (i.e., 65 and 80) are for the 2nd far filed source. so the formula now has both Theta and Phi. So now I want to put them in those formulas given below and the number of antennas ara again 8. The 3D Array Factor formula is given in the attachment. I tried but in vain.
clear;clc
f=1e9;% frequency
c=3e8;% Speed of light
l=c/f;% lambda
k=(2*pi)/l;% wavenumber
N=8;% Number of antennas
n=0:N-1;
phi_n=2*pi*n/N;
phi=-pi:pi/18:pi;
theta=0:pi/18:pi/2;
u=[30 50 60 80];% four angles
M=length(u);%M=length(theta);
P=length(phi);
d_circular=l/2;% spacing b/w antennas
circumference = N*d_circular;
a=circumference/(2*pi);% radius
AF(m,p)=sum(exp(-i*k*a*sin(theta(m))*(cos(phi(p)-phi_n))));
x(m,p)=abs(AF(m,p))*sin(theta(m))*cos(phi(p));
y(m,p)=abs(AF(m,p))*sin(theta(m))*sin(phi(p));
z(m,p)=abs(AF(m,p))*cos(theta(m)); want to do like previous one, how, homework MATLAB Answers — New Questions
derivative of two matrices 2 by 2
If I have a matrix P of size 2 by 2 and a matrix F of size 2 by 2, how do I find the derivative of P with respect to F? Note that P and F are matrices are real numbers.
Is this code is mathmatically correct?
syms F1 F2 F3 F4; % Define symbolic variables for the elements of matrix F
F = [F1, F2; F3, F4]; % Define matrix F
syms p1 p2 p3 p4; % Define symbolic variables for the elements of matrix p
p = [p1, p2; p3, p4]; % Define matrix p
% Calculate the derivative of p with respect to F
dpdF = jacobian(p(:), F(:));
disp(dpdF)
The out put is
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 0, 0, 0]If I have a matrix P of size 2 by 2 and a matrix F of size 2 by 2, how do I find the derivative of P with respect to F? Note that P and F are matrices are real numbers.
Is this code is mathmatically correct?
syms F1 F2 F3 F4; % Define symbolic variables for the elements of matrix F
F = [F1, F2; F3, F4]; % Define matrix F
syms p1 p2 p3 p4; % Define symbolic variables for the elements of matrix p
p = [p1, p2; p3, p4]; % Define matrix p
% Calculate the derivative of p with respect to F
dpdF = jacobian(p(:), F(:));
disp(dpdF)
The out put is
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 0, 0, 0] If I have a matrix P of size 2 by 2 and a matrix F of size 2 by 2, how do I find the derivative of P with respect to F? Note that P and F are matrices are real numbers.
Is this code is mathmatically correct?
syms F1 F2 F3 F4; % Define symbolic variables for the elements of matrix F
F = [F1, F2; F3, F4]; % Define matrix F
syms p1 p2 p3 p4; % Define symbolic variables for the elements of matrix p
p = [p1, p2; p3, p4]; % Define matrix p
% Calculate the derivative of p with respect to F
dpdF = jacobian(p(:), F(:));
disp(dpdF)
The out put is
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 0, 0, 0] derivative MATLAB Answers — New Questions
How to build a amplitude modulated tone?
Hello,
I would like to program a Amplitude modulated tone according to the formula:
stim = sqrt(2) * LvPa_ipsi * SoundEnv.*Carri_ipsi.*[2.*m.*(((1-cos(2.*pi.*fm))./2).^n-0.5)+1];
Since I am not an expert into math and signal processing, I only get an array of zeros. This formula will come in the last line before plotting. Can someone help me finding the bug in the code?
Best,
Paul
Here is my Code:
%% simulation parameters
clear
close all
clc
% stimulus sound parameters
Fq_ipsi = 2000; % [Hz] low-frequency stimulation
LvdB_ipsi = 80; % sound level [dBSPL]
LvPa_ipsi = 10^(LvdB_ipsi/20)*20e-6; % [Pa] calculated from dB SPL re 20 µPa
phase_ipsi = 0; % [rad] initial phase
Fq_contra = 2000; % [Hz] high-frequency stimulation
LvdB_contra = 80; % sound level [dBSPL]
LvPa_contra = 10^(LvdB_contra/20)*20e-6; % [Pa] calculated from dB SPL re 20 µPa
phase_contra = 0; % [rad] initial phase
% time steps
DTms = 0.01; % [ms] time step — 100kHz sampling rate
% time lengths
Tall = 50; % [ms] entire duration of simulation
Tinit = 15; % [ms] starting time of stimulus
Tstim = 25; % [ms] duration of entire stimulus
Tramp = 3.9;% [ms] duration of stimulus ramp
Tlast = 10; % [ms] time after stimulus
Nall = round(Tall /DTms);
Ninit = round(Tinit/DTms);
Nstim = round(Tstim/DTms);
Nramp = round(Tramp/DTms);
Nlast = round(Tlast/DTms);
tvms = (0:Nall-1)*DTms-Tinit; % time vector (stimulus starts at time zero)
lmain = logical( [zeros(1,Ninit),ones(1,Nstim),zeros(1,Nlast)] );
% constructing sound stimuli
disp(‘Making sound stimuli’);
% stimulus sound envelope (ramp)
SoundEnv = zeros(1,Nall);
% SoundEnv(Ninit+1 :Ninit+Nramp+1) = (0:Nramp)/Nramp; % upward ramp
SoundEnv(Ninit+1 :Ninit+Nstim+1) = 1; % stimulus
% SoundEnv(Ninit+Nstim-Nramp+1:Ninit+Nstim+1) = (Nramp:-1:0)/Nramp; % downward ramp
% Set-up for Amplitde modulated tone
fm = 128; % modulation frequency [Hz]
n = 1; % exponent
m = 1; % modulation depth
% stimulus sound waveforms
Carri_ipsi = sin( 2 * pi * Fq_ipsi * ((tvms-Tinit)/1000) + phase_ipsi); % carrier sine wave
Carri_contra = sin( 2 * pi * Fq_contra * ((tvms-Tinit)/1000) + phase_contra); % carrier sine wave
Sound_ipsi = sqrt(2) * LvPa_ipsi * SoundEnv .* Carri_ipsi; % apply ramp and scale to Pa
Sound_contra = sqrt(2) * LvPa_contra * SoundEnv .* Carri_contra; % apply ramp and scale to Pa
% Make the Signal Amplitude modulated tone
stim = sqrt(2) * LvPa_ipsi * SoundEnv.*Carri_ipsi.*[2.*m.*(((1-cos(2.*pi.*fm))./2).^n-0.5)+1];
figure()
subplot(2,1,1)
plot(tvms, stim)
subplot(2,1,2)
plot(tvms, Sound_contra)
title(‘Carrier’)
xlabel (‘Time / ms’)
ylabel(‘Amplitude’)Hello,
I would like to program a Amplitude modulated tone according to the formula:
stim = sqrt(2) * LvPa_ipsi * SoundEnv.*Carri_ipsi.*[2.*m.*(((1-cos(2.*pi.*fm))./2).^n-0.5)+1];
Since I am not an expert into math and signal processing, I only get an array of zeros. This formula will come in the last line before plotting. Can someone help me finding the bug in the code?
Best,
Paul
Here is my Code:
%% simulation parameters
clear
close all
clc
% stimulus sound parameters
Fq_ipsi = 2000; % [Hz] low-frequency stimulation
LvdB_ipsi = 80; % sound level [dBSPL]
LvPa_ipsi = 10^(LvdB_ipsi/20)*20e-6; % [Pa] calculated from dB SPL re 20 µPa
phase_ipsi = 0; % [rad] initial phase
Fq_contra = 2000; % [Hz] high-frequency stimulation
LvdB_contra = 80; % sound level [dBSPL]
LvPa_contra = 10^(LvdB_contra/20)*20e-6; % [Pa] calculated from dB SPL re 20 µPa
phase_contra = 0; % [rad] initial phase
% time steps
DTms = 0.01; % [ms] time step — 100kHz sampling rate
% time lengths
Tall = 50; % [ms] entire duration of simulation
Tinit = 15; % [ms] starting time of stimulus
Tstim = 25; % [ms] duration of entire stimulus
Tramp = 3.9;% [ms] duration of stimulus ramp
Tlast = 10; % [ms] time after stimulus
Nall = round(Tall /DTms);
Ninit = round(Tinit/DTms);
Nstim = round(Tstim/DTms);
Nramp = round(Tramp/DTms);
Nlast = round(Tlast/DTms);
tvms = (0:Nall-1)*DTms-Tinit; % time vector (stimulus starts at time zero)
lmain = logical( [zeros(1,Ninit),ones(1,Nstim),zeros(1,Nlast)] );
% constructing sound stimuli
disp(‘Making sound stimuli’);
% stimulus sound envelope (ramp)
SoundEnv = zeros(1,Nall);
% SoundEnv(Ninit+1 :Ninit+Nramp+1) = (0:Nramp)/Nramp; % upward ramp
SoundEnv(Ninit+1 :Ninit+Nstim+1) = 1; % stimulus
% SoundEnv(Ninit+Nstim-Nramp+1:Ninit+Nstim+1) = (Nramp:-1:0)/Nramp; % downward ramp
% Set-up for Amplitde modulated tone
fm = 128; % modulation frequency [Hz]
n = 1; % exponent
m = 1; % modulation depth
% stimulus sound waveforms
Carri_ipsi = sin( 2 * pi * Fq_ipsi * ((tvms-Tinit)/1000) + phase_ipsi); % carrier sine wave
Carri_contra = sin( 2 * pi * Fq_contra * ((tvms-Tinit)/1000) + phase_contra); % carrier sine wave
Sound_ipsi = sqrt(2) * LvPa_ipsi * SoundEnv .* Carri_ipsi; % apply ramp and scale to Pa
Sound_contra = sqrt(2) * LvPa_contra * SoundEnv .* Carri_contra; % apply ramp and scale to Pa
% Make the Signal Amplitude modulated tone
stim = sqrt(2) * LvPa_ipsi * SoundEnv.*Carri_ipsi.*[2.*m.*(((1-cos(2.*pi.*fm))./2).^n-0.5)+1];
figure()
subplot(2,1,1)
plot(tvms, stim)
subplot(2,1,2)
plot(tvms, Sound_contra)
title(‘Carrier’)
xlabel (‘Time / ms’)
ylabel(‘Amplitude’) Hello,
I would like to program a Amplitude modulated tone according to the formula:
stim = sqrt(2) * LvPa_ipsi * SoundEnv.*Carri_ipsi.*[2.*m.*(((1-cos(2.*pi.*fm))./2).^n-0.5)+1];
Since I am not an expert into math and signal processing, I only get an array of zeros. This formula will come in the last line before plotting. Can someone help me finding the bug in the code?
Best,
Paul
Here is my Code:
%% simulation parameters
clear
close all
clc
% stimulus sound parameters
Fq_ipsi = 2000; % [Hz] low-frequency stimulation
LvdB_ipsi = 80; % sound level [dBSPL]
LvPa_ipsi = 10^(LvdB_ipsi/20)*20e-6; % [Pa] calculated from dB SPL re 20 µPa
phase_ipsi = 0; % [rad] initial phase
Fq_contra = 2000; % [Hz] high-frequency stimulation
LvdB_contra = 80; % sound level [dBSPL]
LvPa_contra = 10^(LvdB_contra/20)*20e-6; % [Pa] calculated from dB SPL re 20 µPa
phase_contra = 0; % [rad] initial phase
% time steps
DTms = 0.01; % [ms] time step — 100kHz sampling rate
% time lengths
Tall = 50; % [ms] entire duration of simulation
Tinit = 15; % [ms] starting time of stimulus
Tstim = 25; % [ms] duration of entire stimulus
Tramp = 3.9;% [ms] duration of stimulus ramp
Tlast = 10; % [ms] time after stimulus
Nall = round(Tall /DTms);
Ninit = round(Tinit/DTms);
Nstim = round(Tstim/DTms);
Nramp = round(Tramp/DTms);
Nlast = round(Tlast/DTms);
tvms = (0:Nall-1)*DTms-Tinit; % time vector (stimulus starts at time zero)
lmain = logical( [zeros(1,Ninit),ones(1,Nstim),zeros(1,Nlast)] );
% constructing sound stimuli
disp(‘Making sound stimuli’);
% stimulus sound envelope (ramp)
SoundEnv = zeros(1,Nall);
% SoundEnv(Ninit+1 :Ninit+Nramp+1) = (0:Nramp)/Nramp; % upward ramp
SoundEnv(Ninit+1 :Ninit+Nstim+1) = 1; % stimulus
% SoundEnv(Ninit+Nstim-Nramp+1:Ninit+Nstim+1) = (Nramp:-1:0)/Nramp; % downward ramp
% Set-up for Amplitde modulated tone
fm = 128; % modulation frequency [Hz]
n = 1; % exponent
m = 1; % modulation depth
% stimulus sound waveforms
Carri_ipsi = sin( 2 * pi * Fq_ipsi * ((tvms-Tinit)/1000) + phase_ipsi); % carrier sine wave
Carri_contra = sin( 2 * pi * Fq_contra * ((tvms-Tinit)/1000) + phase_contra); % carrier sine wave
Sound_ipsi = sqrt(2) * LvPa_ipsi * SoundEnv .* Carri_ipsi; % apply ramp and scale to Pa
Sound_contra = sqrt(2) * LvPa_contra * SoundEnv .* Carri_contra; % apply ramp and scale to Pa
% Make the Signal Amplitude modulated tone
stim = sqrt(2) * LvPa_ipsi * SoundEnv.*Carri_ipsi.*[2.*m.*(((1-cos(2.*pi.*fm))./2).^n-0.5)+1];
figure()
subplot(2,1,1)
plot(tvms, stim)
subplot(2,1,2)
plot(tvms, Sound_contra)
title(‘Carrier’)
xlabel (‘Time / ms’)
ylabel(‘Amplitude’) acoustics, signal processing MATLAB Answers — New Questions
Find the equations of Motion
For a base excitation single DOF oscillatory system (mass-spring-damper) (like an Earthquake): Period of pi/2 sec; m = 1 kg; Spring coefficient (k) = 100 N/m; Damping Ratio = 0.15; Damper coefficient (c) = 3 N-s/m; Natural Frequency = 10 rad/s.
I want to find the equations of motion and the response given these properties and I need to use MatLab for simualtion. I’m not completely sure how to go about this with the functions, independent variable (t), and maybe ode45 to make this a consistent equation. The Equation of Motion that’s for the system is at the bottom of my script. I’m just a little lost and would appreciate some guidance. Here’s my code so far:
% For the response of a damped system under the harmonic motion of the base
k = 100 % N/m
m = 1 % kg
DR = 0.15 % Damping Ratio
wn = (k/m)^(1/2) % rad/s
w = ???
t = % independent ???
Y = % Big Y is Maximum Amplitude of Base Motion Test Bed (Unknown)
c = DR*2*m*wn %N-s/m
alpha = arctan((-c*w)/k)
A = Y*((k^2)+(c*w)^2)^(1/2)
EOM1 = A*sin(w*t-alpha) % External ForceFor a base excitation single DOF oscillatory system (mass-spring-damper) (like an Earthquake): Period of pi/2 sec; m = 1 kg; Spring coefficient (k) = 100 N/m; Damping Ratio = 0.15; Damper coefficient (c) = 3 N-s/m; Natural Frequency = 10 rad/s.
I want to find the equations of motion and the response given these properties and I need to use MatLab for simualtion. I’m not completely sure how to go about this with the functions, independent variable (t), and maybe ode45 to make this a consistent equation. The Equation of Motion that’s for the system is at the bottom of my script. I’m just a little lost and would appreciate some guidance. Here’s my code so far:
% For the response of a damped system under the harmonic motion of the base
k = 100 % N/m
m = 1 % kg
DR = 0.15 % Damping Ratio
wn = (k/m)^(1/2) % rad/s
w = ???
t = % independent ???
Y = % Big Y is Maximum Amplitude of Base Motion Test Bed (Unknown)
c = DR*2*m*wn %N-s/m
alpha = arctan((-c*w)/k)
A = Y*((k^2)+(c*w)^2)^(1/2)
EOM1 = A*sin(w*t-alpha) % External Force For a base excitation single DOF oscillatory system (mass-spring-damper) (like an Earthquake): Period of pi/2 sec; m = 1 kg; Spring coefficient (k) = 100 N/m; Damping Ratio = 0.15; Damper coefficient (c) = 3 N-s/m; Natural Frequency = 10 rad/s.
I want to find the equations of motion and the response given these properties and I need to use MatLab for simualtion. I’m not completely sure how to go about this with the functions, independent variable (t), and maybe ode45 to make this a consistent equation. The Equation of Motion that’s for the system is at the bottom of my script. I’m just a little lost and would appreciate some guidance. Here’s my code so far:
% For the response of a damped system under the harmonic motion of the base
k = 100 % N/m
m = 1 % kg
DR = 0.15 % Damping Ratio
wn = (k/m)^(1/2) % rad/s
w = ???
t = % independent ???
Y = % Big Y is Maximum Amplitude of Base Motion Test Bed (Unknown)
c = DR*2*m*wn %N-s/m
alpha = arctan((-c*w)/k)
A = Y*((k^2)+(c*w)^2)^(1/2)
EOM1 = A*sin(w*t-alpha) % External Force vibrations, differential equations, equations of motion, eom MATLAB Answers — New Questions
How to turn S11 to time domain by Matlab
Hi,everyone.I run HFSS to get S11 for my circuit,HFSS also provide time domain for S11.I want to obtain the same time domain response by Matlab.However the result is not even close.Can anyone help~Thx!
The input signal is an impulse and I perform the frequency domain simulation from 0~7.5GHz.
And both attached files are the result from HFSS.
Here’s my code:
load S11_re.txt -ascii
load S11_im.txt -ascii
freq=1e+9*S11_re(:,1);
S11=S11_re(:,2)+1i*S11_im(:,2);
TDR=ifft(S11);
Fs=2*max(freq);
Ts=1/Fs;
N=numel(TDR);
tvec=(0:(N-1))*Ts;
plot(tvec,abs(TDR))Hi,everyone.I run HFSS to get S11 for my circuit,HFSS also provide time domain for S11.I want to obtain the same time domain response by Matlab.However the result is not even close.Can anyone help~Thx!
The input signal is an impulse and I perform the frequency domain simulation from 0~7.5GHz.
And both attached files are the result from HFSS.
Here’s my code:
load S11_re.txt -ascii
load S11_im.txt -ascii
freq=1e+9*S11_re(:,1);
S11=S11_re(:,2)+1i*S11_im(:,2);
TDR=ifft(S11);
Fs=2*max(freq);
Ts=1/Fs;
N=numel(TDR);
tvec=(0:(N-1))*Ts;
plot(tvec,abs(TDR)) Hi,everyone.I run HFSS to get S11 for my circuit,HFSS also provide time domain for S11.I want to obtain the same time domain response by Matlab.However the result is not even close.Can anyone help~Thx!
The input signal is an impulse and I perform the frequency domain simulation from 0~7.5GHz.
And both attached files are the result from HFSS.
Here’s my code:
load S11_re.txt -ascii
load S11_im.txt -ascii
freq=1e+9*S11_re(:,1);
S11=S11_re(:,2)+1i*S11_im(:,2);
TDR=ifft(S11);
Fs=2*max(freq);
Ts=1/Fs;
N=numel(TDR);
tvec=(0:(N-1))*Ts;
plot(tvec,abs(TDR)) ifft, time domain MATLAB Answers — New Questions
Assistance Required for Clustering Code Implementation
Dear Matlab experts,
I am experiencing some issues with my clustering code, and I would like assistance in resolving these problems.
Thank you very much in advance.
Best regards,
J1
% MATLAB 코드 – 데이터 로드 및 클러스터링
% 1. 데이터 로드
dataPath = "C:UsershhyanDesktop분배이론그림2GPT data_1.csv";
opts = detectImportOptions(dataPath); % 데이터 가져오기 옵션 감지
data = readtable(dataPath, opts); % 테이블 형식으로 데이터 읽기
% 2. 분석에 사용할 컬럼 선택
selectedCols = ["GDPpercapita", "GDPgrowth", "Gini"]; % 원하는 컬럼 선택
selectedData = data(:, selectedCols); % 해당 컬럼만 추출
% 3. 데이터 전처리
selectedData = rmmissing(selectedData); % 결측치 제거
% 4. 숫자 데이터로 변환
selectedData.GDPpercapita = str2double(strrep(selectedData.GDPpercapita, ‘,’, ”));
selectedData.GDPgrowth = str2double(selectedData.GDPgrowth);
selectedData.Gini = str2double(selectedData.Gini);
% 5. 클러스터링 수행 (예: K-Means)
k = 3; % 클러스터의 수
[idx, centroids] = kmeans(table2array(selectedData), k); % kmeans 클러스터링
% 6. 클러스터 결과를 데이터에 추가
idx_table = array2table(idx, ‘VariableNames’, {‘Cluster’}); % 클러스터 번호를 테이블로 변환
if height(idx_table) == height(data) % 행 개수 일치 확인
data = [data idx_table]; % 기존 데이터와 병합
else
error("클러스터링 결과의 길이가 데이터셋의 행 개수와 일치하지 않습니다.");
end
% 7. 클러스터 결과 시각화
figure; % 새로운 그래프 창 열기
scatter(selectedData.GDPpercapita, selectedData.GDPgrowth, 50, idx, ‘filled’);
hold on;
scatter(centroids(:, 1), centroids(:, 2), 100, ‘kx’, ‘LineWidth’, 3); % 센트로이드 표시
xlabel(‘1인당 GDP’);
ylabel(‘GDP 성장률’);
title(‘국가별 클러스터링’);
hold off;
% 8. 클러스터 결과 저장
writetable(data, "C:UsershhyanDesktop분배이론그림2Clustered_data.csv"); % 클러스터 결과 저장Dear Matlab experts,
I am experiencing some issues with my clustering code, and I would like assistance in resolving these problems.
Thank you very much in advance.
Best regards,
J1
% MATLAB 코드 – 데이터 로드 및 클러스터링
% 1. 데이터 로드
dataPath = "C:UsershhyanDesktop분배이론그림2GPT data_1.csv";
opts = detectImportOptions(dataPath); % 데이터 가져오기 옵션 감지
data = readtable(dataPath, opts); % 테이블 형식으로 데이터 읽기
% 2. 분석에 사용할 컬럼 선택
selectedCols = ["GDPpercapita", "GDPgrowth", "Gini"]; % 원하는 컬럼 선택
selectedData = data(:, selectedCols); % 해당 컬럼만 추출
% 3. 데이터 전처리
selectedData = rmmissing(selectedData); % 결측치 제거
% 4. 숫자 데이터로 변환
selectedData.GDPpercapita = str2double(strrep(selectedData.GDPpercapita, ‘,’, ”));
selectedData.GDPgrowth = str2double(selectedData.GDPgrowth);
selectedData.Gini = str2double(selectedData.Gini);
% 5. 클러스터링 수행 (예: K-Means)
k = 3; % 클러스터의 수
[idx, centroids] = kmeans(table2array(selectedData), k); % kmeans 클러스터링
% 6. 클러스터 결과를 데이터에 추가
idx_table = array2table(idx, ‘VariableNames’, {‘Cluster’}); % 클러스터 번호를 테이블로 변환
if height(idx_table) == height(data) % 행 개수 일치 확인
data = [data idx_table]; % 기존 데이터와 병합
else
error("클러스터링 결과의 길이가 데이터셋의 행 개수와 일치하지 않습니다.");
end
% 7. 클러스터 결과 시각화
figure; % 새로운 그래프 창 열기
scatter(selectedData.GDPpercapita, selectedData.GDPgrowth, 50, idx, ‘filled’);
hold on;
scatter(centroids(:, 1), centroids(:, 2), 100, ‘kx’, ‘LineWidth’, 3); % 센트로이드 표시
xlabel(‘1인당 GDP’);
ylabel(‘GDP 성장률’);
title(‘국가별 클러스터링’);
hold off;
% 8. 클러스터 결과 저장
writetable(data, "C:UsershhyanDesktop분배이론그림2Clustered_data.csv"); % 클러스터 결과 저장 Dear Matlab experts,
I am experiencing some issues with my clustering code, and I would like assistance in resolving these problems.
Thank you very much in advance.
Best regards,
J1
% MATLAB 코드 – 데이터 로드 및 클러스터링
% 1. 데이터 로드
dataPath = "C:UsershhyanDesktop분배이론그림2GPT data_1.csv";
opts = detectImportOptions(dataPath); % 데이터 가져오기 옵션 감지
data = readtable(dataPath, opts); % 테이블 형식으로 데이터 읽기
% 2. 분석에 사용할 컬럼 선택
selectedCols = ["GDPpercapita", "GDPgrowth", "Gini"]; % 원하는 컬럼 선택
selectedData = data(:, selectedCols); % 해당 컬럼만 추출
% 3. 데이터 전처리
selectedData = rmmissing(selectedData); % 결측치 제거
% 4. 숫자 데이터로 변환
selectedData.GDPpercapita = str2double(strrep(selectedData.GDPpercapita, ‘,’, ”));
selectedData.GDPgrowth = str2double(selectedData.GDPgrowth);
selectedData.Gini = str2double(selectedData.Gini);
% 5. 클러스터링 수행 (예: K-Means)
k = 3; % 클러스터의 수
[idx, centroids] = kmeans(table2array(selectedData), k); % kmeans 클러스터링
% 6. 클러스터 결과를 데이터에 추가
idx_table = array2table(idx, ‘VariableNames’, {‘Cluster’}); % 클러스터 번호를 테이블로 변환
if height(idx_table) == height(data) % 행 개수 일치 확인
data = [data idx_table]; % 기존 데이터와 병합
else
error("클러스터링 결과의 길이가 데이터셋의 행 개수와 일치하지 않습니다.");
end
% 7. 클러스터 결과 시각화
figure; % 새로운 그래프 창 열기
scatter(selectedData.GDPpercapita, selectedData.GDPgrowth, 50, idx, ‘filled’);
hold on;
scatter(centroids(:, 1), centroids(:, 2), 100, ‘kx’, ‘LineWidth’, 3); % 센트로이드 표시
xlabel(‘1인당 GDP’);
ylabel(‘GDP 성장률’);
title(‘국가별 클러스터링’);
hold off;
% 8. 클러스터 결과 저장
writetable(data, "C:UsershhyanDesktop분배이론그림2Clustered_data.csv"); % 클러스터 결과 저장 clustering, code MATLAB Answers — New Questions
Highlighted numbers in Matlab
Hello :), I am new in Matlab, and I’d like to know if there is a way to highlight numbers so that it can be easily differentiated from the rest of the characters.
I am referring to this:
Numbers in Matlab:
Highlighted numbers:Hello :), I am new in Matlab, and I’d like to know if there is a way to highlight numbers so that it can be easily differentiated from the rest of the characters.
I am referring to this:
Numbers in Matlab:
Highlighted numbers: Hello :), I am new in Matlab, and I’d like to know if there is a way to highlight numbers so that it can be easily differentiated from the rest of the characters.
I am referring to this:
Numbers in Matlab:
Highlighted numbers: transferred MATLAB Answers — New Questions
How can I purchase a new Student License?
How can I purchase a new Student License?How can I purchase a new Student License? How can I purchase a new Student License? MATLAB Answers — New Questions
checking PSO code quality and goodness
i have made my PSO code for my research in fog computing networks…..
i have my result and curves…
my question is —— how can i be sure that my code results are accepted ???
is there a general way for checking it?
is there any steps i can do to check it?
i need to check it because i need to proceed my research steps…
i hope you help me
thanksi have made my PSO code for my research in fog computing networks…..
i have my result and curves…
my question is —— how can i be sure that my code results are accepted ???
is there a general way for checking it?
is there any steps i can do to check it?
i need to check it because i need to proceed my research steps…
i hope you help me
thanks i have made my PSO code for my research in fog computing networks…..
i have my result and curves…
my question is —— how can i be sure that my code results are accepted ???
is there a general way for checking it?
is there any steps i can do to check it?
i need to check it because i need to proceed my research steps…
i hope you help me
thanks pso coding, fog computing MATLAB Answers — New Questions
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I am research scholar from India. I am using PSAT software for my research work. I had used the same software for my M.Tech project which worked very well at that time.
Now I am coming across following error when I load data file and run power flow.
Newton-Raphson Method for Power Flow Computation
Data file "C:UsersEXAMDesktopMANJULAexample1(mdl)"
Writing file "fm_call" …
??? Error using ==> fprintf
Invalid file identifier. Use fopen to generate a valid file identifier.
Error in ==> fm_wcall at 49
count = fprintf(fid,’function fm_call(flag)nn’);
Error in ==> fm_spf at 41
fm_wcall;
Error in ==> fm_set at 720
fm_spf
??? Error while evaluating uicontrol Callback
kindly help me to debug this error which will be great help for me.I am research scholar from India. I am using PSAT software for my research work. I had used the same software for my M.Tech project which worked very well at that time.
Now I am coming across following error when I load data file and run power flow.
Newton-Raphson Method for Power Flow Computation
Data file "C:UsersEXAMDesktopMANJULAexample1(mdl)"
Writing file "fm_call" …
??? Error using ==> fprintf
Invalid file identifier. Use fopen to generate a valid file identifier.
Error in ==> fm_wcall at 49
count = fprintf(fid,’function fm_call(flag)nn’);
Error in ==> fm_spf at 41
fm_wcall;
Error in ==> fm_set at 720
fm_spf
??? Error while evaluating uicontrol Callback
kindly help me to debug this error which will be great help for me. I am research scholar from India. I am using PSAT software for my research work. I had used the same software for my M.Tech project which worked very well at that time.
Now I am coming across following error when I load data file and run power flow.
Newton-Raphson Method for Power Flow Computation
Data file "C:UsersEXAMDesktopMANJULAexample1(mdl)"
Writing file "fm_call" …
??? Error using ==> fprintf
Invalid file identifier. Use fopen to generate a valid file identifier.
Error in ==> fm_wcall at 49
count = fprintf(fid,’function fm_call(flag)nn’);
Error in ==> fm_spf at 41
fm_wcall;
Error in ==> fm_set at 720
fm_spf
??? Error while evaluating uicontrol Callback
kindly help me to debug this error which will be great help for me. psat, matlab MATLAB Answers — New Questions
How do I incorporate a scheduling algorithm in ifogsim in fog computing?
I am currently working on optimized task scheduling in fog computing domain. I have developed a scheduling algorithm in MATLAB. I am using ifogsim for simulation purpose. I have embedded a module called scheduling algorithm inside the scheduler device in ifogsim. But how do I actually call the module from MATLAB where I have developed the scheduling algorithm. I am stuck here.I am currently working on optimized task scheduling in fog computing domain. I have developed a scheduling algorithm in MATLAB. I am using ifogsim for simulation purpose. I have embedded a module called scheduling algorithm inside the scheduler device in ifogsim. But how do I actually call the module from MATLAB where I have developed the scheduling algorithm. I am stuck here. I am currently working on optimized task scheduling in fog computing domain. I have developed a scheduling algorithm in MATLAB. I am using ifogsim for simulation purpose. I have embedded a module called scheduling algorithm inside the scheduler device in ifogsim. But how do I actually call the module from MATLAB where I have developed the scheduling algorithm. I am stuck here. matlab MATLAB Answers — New Questions