Tag Archives: matlab
How to connect to oscilloscope using MATLAB with Linux Ubuntu as operating system
I am running Linux ubuntu 22.04 as my operating system with MATLAB 2024a. I am trying to connect to a HDO9104 Lecroy oscilloscope using Instrument Control Toolbox via TCP/IP. However, MATLAB is unable to detect the oscilloscope.I am running Linux ubuntu 22.04 as my operating system with MATLAB 2024a. I am trying to connect to a HDO9104 Lecroy oscilloscope using Instrument Control Toolbox via TCP/IP. However, MATLAB is unable to detect the oscilloscope. I am running Linux ubuntu 22.04 as my operating system with MATLAB 2024a. I am trying to connect to a HDO9104 Lecroy oscilloscope using Instrument Control Toolbox via TCP/IP. However, MATLAB is unable to detect the oscilloscope. linux ubuntu, instrument control toolbox, tcp/ip, lecroy oscilloscope MATLAB Answers — New Questions
How to create an array from a ‘for loop’ of numeric data read from multiple excel files?
A list of excel files is made
The numeric data is imported from multiple excel files using ‘xlsread’ in a for loop.
>> facdata={‘1.csv’,’2.csv’,’3.csv’};
>> for fn=facdata
xlsread(fn{:},’D9:D9′);
endA list of excel files is made
The numeric data is imported from multiple excel files using ‘xlsread’ in a for loop.
>> facdata={‘1.csv’,’2.csv’,’3.csv’};
>> for fn=facdata
xlsread(fn{:},’D9:D9′);
end A list of excel files is made
The numeric data is imported from multiple excel files using ‘xlsread’ in a for loop.
>> facdata={‘1.csv’,’2.csv’,’3.csv’};
>> for fn=facdata
xlsread(fn{:},’D9:D9′);
end read multiple excel files, create list from excel data MATLAB Answers — New Questions
Asking for help with variables
1) I am developing a code and I have stored a column from a database (numerical values) inside a variable. When using the ‘ones’ function and utilizing the variable where I have stored the column, the code does not work. However, when I program the same function and call the column of values directly, it allows me to run the code. Is there any way to use the name of the variable that I created?
n_inter = length(data_inter.RSN); % Utilizado para regresion
n_intra = length(data_intra.RSN); % Utilizado para regresion
x_axis = PGA1100_inter; % variable seleccionada para eje x
X_inter = [ones(n_inter,1) data_inter.PGA1100]; (allows me)
X_intra = [ones(n_intra,1) x_axis]; (does not allow)
2) Also, I would like to know if it is possible to store the following code inside a table, meaning that the workspace looks much cleaner and all the generated variables are stored inside a table.
% Interplaca
[b_inter_PGA] = regress(data_inter.res_PGA, X_inter);
[b_inter_PGV] = regress(data_inter.res_PGV, X_inter);
[b_inter_002] = regress(data_inter.res_002, X_inter);
[b_inter_015] = regress(data_inter.res_015, X_inter);
[b_inter_02] = regress(data_inter.res_02, X_inter);
[b_inter_03] = regress(data_inter.res_03, X_inter);
[b_inter_1] = regress(data_inter.res_1, X_inter);
[b_inter_3] = regress(data_inter.res_3, X_inter);1) I am developing a code and I have stored a column from a database (numerical values) inside a variable. When using the ‘ones’ function and utilizing the variable where I have stored the column, the code does not work. However, when I program the same function and call the column of values directly, it allows me to run the code. Is there any way to use the name of the variable that I created?
n_inter = length(data_inter.RSN); % Utilizado para regresion
n_intra = length(data_intra.RSN); % Utilizado para regresion
x_axis = PGA1100_inter; % variable seleccionada para eje x
X_inter = [ones(n_inter,1) data_inter.PGA1100]; (allows me)
X_intra = [ones(n_intra,1) x_axis]; (does not allow)
2) Also, I would like to know if it is possible to store the following code inside a table, meaning that the workspace looks much cleaner and all the generated variables are stored inside a table.
% Interplaca
[b_inter_PGA] = regress(data_inter.res_PGA, X_inter);
[b_inter_PGV] = regress(data_inter.res_PGV, X_inter);
[b_inter_002] = regress(data_inter.res_002, X_inter);
[b_inter_015] = regress(data_inter.res_015, X_inter);
[b_inter_02] = regress(data_inter.res_02, X_inter);
[b_inter_03] = regress(data_inter.res_03, X_inter);
[b_inter_1] = regress(data_inter.res_1, X_inter);
[b_inter_3] = regress(data_inter.res_3, X_inter); 1) I am developing a code and I have stored a column from a database (numerical values) inside a variable. When using the ‘ones’ function and utilizing the variable where I have stored the column, the code does not work. However, when I program the same function and call the column of values directly, it allows me to run the code. Is there any way to use the name of the variable that I created?
n_inter = length(data_inter.RSN); % Utilizado para regresion
n_intra = length(data_intra.RSN); % Utilizado para regresion
x_axis = PGA1100_inter; % variable seleccionada para eje x
X_inter = [ones(n_inter,1) data_inter.PGA1100]; (allows me)
X_intra = [ones(n_intra,1) x_axis]; (does not allow)
2) Also, I would like to know if it is possible to store the following code inside a table, meaning that the workspace looks much cleaner and all the generated variables are stored inside a table.
% Interplaca
[b_inter_PGA] = regress(data_inter.res_PGA, X_inter);
[b_inter_PGV] = regress(data_inter.res_PGV, X_inter);
[b_inter_002] = regress(data_inter.res_002, X_inter);
[b_inter_015] = regress(data_inter.res_015, X_inter);
[b_inter_02] = regress(data_inter.res_02, X_inter);
[b_inter_03] = regress(data_inter.res_03, X_inter);
[b_inter_1] = regress(data_inter.res_1, X_inter);
[b_inter_3] = regress(data_inter.res_3, X_inter); variables, ones, database MATLAB Answers — New Questions
Demux out put port 1 is not connected
I have create a 100W solar system by watching a YT video. After I run the model it says Demux output port 1 is not connectd (There are 5 similar errors because there are 5 demux in the system). Also there is one Mux in the system, therefore it has a error showing input port of the Mux not connected.
How can I solve this?
And please note in the YT video I have follow, the are not connect anything to Demux nor Mux but there model working fine.
YT video I have followedI have create a 100W solar system by watching a YT video. After I run the model it says Demux output port 1 is not connectd (There are 5 similar errors because there are 5 demux in the system). Also there is one Mux in the system, therefore it has a error showing input port of the Mux not connected.
How can I solve this?
And please note in the YT video I have follow, the are not connect anything to Demux nor Mux but there model working fine.
YT video I have followed I have create a 100W solar system by watching a YT video. After I run the model it says Demux output port 1 is not connectd (There are 5 similar errors because there are 5 demux in the system). Also there is one Mux in the system, therefore it has a error showing input port of the Mux not connected.
How can I solve this?
And please note in the YT video I have follow, the are not connect anything to Demux nor Mux but there model working fine.
YT video I have followed simulink, demux, mux, solar, solar system, matlab, 100w, export, output MATLAB Answers — New Questions
Custom name for simulink test coverage report
Hello,
When I run my simulink test file and generate test report like in the below code, a folder is created for coverage report and it has a html file with random name like ‘tp576c882a_0284_4a8b_a3b1_8ad156fb7814.html’. (the test report has a link to this coverage report file.)
…
resultNormal = testFile.run;
testReportName = [‘Report_’, blockName, ‘.pdf’];
testReportPath = fullfile(pwd, testReportName);
sltest.testmanager.report(resultNormal, testReportPath, ‘Title’, [‘Test Report for ‘, blockName, ‘ in MIL mode.’], ‘IncludeMLVersion’, true, ‘IncludeComparisonSignalPlots’, true, ‘IncludeErrorMessages’, true, ‘IncludeTestResults’, 0, ‘IncludeCoverageResult’, true,’IncludeMATLABFigures’, true);
Everytime I run this script, a new html file name is created and so I have to replace the old file eveytime in my git. Is there a way to set a fixed name to this html file ?
Thanks.Hello,
When I run my simulink test file and generate test report like in the below code, a folder is created for coverage report and it has a html file with random name like ‘tp576c882a_0284_4a8b_a3b1_8ad156fb7814.html’. (the test report has a link to this coverage report file.)
…
resultNormal = testFile.run;
testReportName = [‘Report_’, blockName, ‘.pdf’];
testReportPath = fullfile(pwd, testReportName);
sltest.testmanager.report(resultNormal, testReportPath, ‘Title’, [‘Test Report for ‘, blockName, ‘ in MIL mode.’], ‘IncludeMLVersion’, true, ‘IncludeComparisonSignalPlots’, true, ‘IncludeErrorMessages’, true, ‘IncludeTestResults’, 0, ‘IncludeCoverageResult’, true,’IncludeMATLABFigures’, true);
Everytime I run this script, a new html file name is created and so I have to replace the old file eveytime in my git. Is there a way to set a fixed name to this html file ?
Thanks. Hello,
When I run my simulink test file and generate test report like in the below code, a folder is created for coverage report and it has a html file with random name like ‘tp576c882a_0284_4a8b_a3b1_8ad156fb7814.html’. (the test report has a link to this coverage report file.)
…
resultNormal = testFile.run;
testReportName = [‘Report_’, blockName, ‘.pdf’];
testReportPath = fullfile(pwd, testReportName);
sltest.testmanager.report(resultNormal, testReportPath, ‘Title’, [‘Test Report for ‘, blockName, ‘ in MIL mode.’], ‘IncludeMLVersion’, true, ‘IncludeComparisonSignalPlots’, true, ‘IncludeErrorMessages’, true, ‘IncludeTestResults’, 0, ‘IncludeCoverageResult’, true,’IncludeMATLABFigures’, true);
Everytime I run this script, a new html file name is created and so I have to replace the old file eveytime in my git. Is there a way to set a fixed name to this html file ?
Thanks. simulink test, coverage report MATLAB Answers — New Questions
In App Designed app: When does a function called within another function spawn a new thread?
I’m having SO much trouble! I think maybe when I call a function from within another function or callback it’s going into a new thread.
I want it to finish the function before moving on. Is the best way to do that to make the function return a (dummy) value?
Since there is nothing to return but completion do I need to declare
function finish = MyFunction(app);
does finish need a value assigned at the end?
or just short cut and call
fin = MyFunction %#ok suppress mLint about unused return value?I’m having SO much trouble! I think maybe when I call a function from within another function or callback it’s going into a new thread.
I want it to finish the function before moving on. Is the best way to do that to make the function return a (dummy) value?
Since there is nothing to return but completion do I need to declare
function finish = MyFunction(app);
does finish need a value assigned at the end?
or just short cut and call
fin = MyFunction %#ok suppress mLint about unused return value? I’m having SO much trouble! I think maybe when I call a function from within another function or callback it’s going into a new thread.
I want it to finish the function before moving on. Is the best way to do that to make the function return a (dummy) value?
Since there is nothing to return but completion do I need to declare
function finish = MyFunction(app);
does finish need a value assigned at the end?
or just short cut and call
fin = MyFunction %#ok suppress mLint about unused return value? threads, function calls MATLAB Answers — New Questions
Why I get error :Cannot find ‘get’ method for matlab.graphics.internal.GraphicsMetaProperty class?
Hello there
My code is:
function plot_kx2_slider()
% Create a figure with a slider and a plot
f = figure;
k=1
slider = uicontrol(‘Style’, ‘slider’, ‘Units’, ‘normalized’, …
‘Position’, [0.1, 0.9, 0.8, 0.05], …
‘Value’, 1, ‘Min’, -5, ‘Max’, 5);
axes_handle = axes(‘Position’, [0.1, 0.1, 0.8, 0.7]);
% Create a function to update the plot based on the slider value
function update_plot(source, eventdata)
% Get slider value using get function
k = get(source, ‘Value’);
x = linspace(-5, 5, 100);
y = k * x.^2;
plot(axes_handle, x, y);
title([‘f(x) = ‘, num2str(k), ‘x^2’]);
xlabel(‘x’);
ylabel(‘f(x)’);
end
% Set the initial plot
update_plot(slider, [0]);
% Add a listener to the slider to update the plot when the slider value changes
addlistener(slider, ‘Value’, ‘PostSet’, @update_plot);
end
this code should plot the function f(x)=kx^2 but MATLAB shows me these errors:
————————-
Warning: Error executing listener callback for PostSet event on Value dynamic property in object of
matlab.ui.control.UIControl class:
Error using get
Cannot find ‘get’ method for matlab.graphics.internal.GraphicsMetaProperty class.
Error in plot_kx2_slider/update_plot (line 13)
k = get(source, ‘Value’);
————————-
guys can you help me?Hello there
My code is:
function plot_kx2_slider()
% Create a figure with a slider and a plot
f = figure;
k=1
slider = uicontrol(‘Style’, ‘slider’, ‘Units’, ‘normalized’, …
‘Position’, [0.1, 0.9, 0.8, 0.05], …
‘Value’, 1, ‘Min’, -5, ‘Max’, 5);
axes_handle = axes(‘Position’, [0.1, 0.1, 0.8, 0.7]);
% Create a function to update the plot based on the slider value
function update_plot(source, eventdata)
% Get slider value using get function
k = get(source, ‘Value’);
x = linspace(-5, 5, 100);
y = k * x.^2;
plot(axes_handle, x, y);
title([‘f(x) = ‘, num2str(k), ‘x^2’]);
xlabel(‘x’);
ylabel(‘f(x)’);
end
% Set the initial plot
update_plot(slider, [0]);
% Add a listener to the slider to update the plot when the slider value changes
addlistener(slider, ‘Value’, ‘PostSet’, @update_plot);
end
this code should plot the function f(x)=kx^2 but MATLAB shows me these errors:
————————-
Warning: Error executing listener callback for PostSet event on Value dynamic property in object of
matlab.ui.control.UIControl class:
Error using get
Cannot find ‘get’ method for matlab.graphics.internal.GraphicsMetaProperty class.
Error in plot_kx2_slider/update_plot (line 13)
k = get(source, ‘Value’);
————————-
guys can you help me? Hello there
My code is:
function plot_kx2_slider()
% Create a figure with a slider and a plot
f = figure;
k=1
slider = uicontrol(‘Style’, ‘slider’, ‘Units’, ‘normalized’, …
‘Position’, [0.1, 0.9, 0.8, 0.05], …
‘Value’, 1, ‘Min’, -5, ‘Max’, 5);
axes_handle = axes(‘Position’, [0.1, 0.1, 0.8, 0.7]);
% Create a function to update the plot based on the slider value
function update_plot(source, eventdata)
% Get slider value using get function
k = get(source, ‘Value’);
x = linspace(-5, 5, 100);
y = k * x.^2;
plot(axes_handle, x, y);
title([‘f(x) = ‘, num2str(k), ‘x^2’]);
xlabel(‘x’);
ylabel(‘f(x)’);
end
% Set the initial plot
update_plot(slider, [0]);
% Add a listener to the slider to update the plot when the slider value changes
addlistener(slider, ‘Value’, ‘PostSet’, @update_plot);
end
this code should plot the function f(x)=kx^2 but MATLAB shows me these errors:
————————-
Warning: Error executing listener callback for PostSet event on Value dynamic property in object of
matlab.ui.control.UIControl class:
Error using get
Cannot find ‘get’ method for matlab.graphics.internal.GraphicsMetaProperty class.
Error in plot_kx2_slider/update_plot (line 13)
k = get(source, ‘Value’);
————————-
guys can you help me? error MATLAB Answers — New Questions
Error using odearguments Vector Length issue
I am not sure I understand the issue here. Any help would be appreciated
%% Initial Variables
s1=0.27; s2=1.04; s3=0.716; s4=0; s5=0; Vref=1.04; Pref=0.716;
%% Define Diferential Equations
function dsdt= pv_system(t,s)
%parameters
Ki=20; Kp=4; Kip=10; Kiq=10; Tr=0.02; TGpv=0.01; Rq=0; Rp=0.05;
Vref=1.04; Qactual=0.27; Vt=1.04;Pref=0.716;DeltaOmega=0;Pactual=0.716;
Qcmd =0.27;
%State Variables
s1=s(1); s2=s(2); s3=(s); s4=s(4); s5=s(4);
%diferential Equations
ds1dt=Ki*(Vref-s2-Rq*Qactual);
ds2dt = (1 / Tr) * (Vt – s2);
ds3dt = (1 / TGpv) * (Pref – (DeltaOmega / Rp) – s3);
ds4dt = Kip * (s3 – Pactual);
ds5dt = Kiq * (Qcmd – Qactual);
dsdt = [ds1dt; ds2dt; ds3dt; ds4dt; ds5dt];
end
%% inital Vector
s0 = [s1;s2;s3;s4;s5];
%% Time span for simulation
tspan = [0 10]; % 0 to 10 seconds
%% Solve using ode45
[t, s] = ode45(@pv_system, tspan, s0);I am not sure I understand the issue here. Any help would be appreciated
%% Initial Variables
s1=0.27; s2=1.04; s3=0.716; s4=0; s5=0; Vref=1.04; Pref=0.716;
%% Define Diferential Equations
function dsdt= pv_system(t,s)
%parameters
Ki=20; Kp=4; Kip=10; Kiq=10; Tr=0.02; TGpv=0.01; Rq=0; Rp=0.05;
Vref=1.04; Qactual=0.27; Vt=1.04;Pref=0.716;DeltaOmega=0;Pactual=0.716;
Qcmd =0.27;
%State Variables
s1=s(1); s2=s(2); s3=(s); s4=s(4); s5=s(4);
%diferential Equations
ds1dt=Ki*(Vref-s2-Rq*Qactual);
ds2dt = (1 / Tr) * (Vt – s2);
ds3dt = (1 / TGpv) * (Pref – (DeltaOmega / Rp) – s3);
ds4dt = Kip * (s3 – Pactual);
ds5dt = Kiq * (Qcmd – Qactual);
dsdt = [ds1dt; ds2dt; ds3dt; ds4dt; ds5dt];
end
%% inital Vector
s0 = [s1;s2;s3;s4;s5];
%% Time span for simulation
tspan = [0 10]; % 0 to 10 seconds
%% Solve using ode45
[t, s] = ode45(@pv_system, tspan, s0); I am not sure I understand the issue here. Any help would be appreciated
%% Initial Variables
s1=0.27; s2=1.04; s3=0.716; s4=0; s5=0; Vref=1.04; Pref=0.716;
%% Define Diferential Equations
function dsdt= pv_system(t,s)
%parameters
Ki=20; Kp=4; Kip=10; Kiq=10; Tr=0.02; TGpv=0.01; Rq=0; Rp=0.05;
Vref=1.04; Qactual=0.27; Vt=1.04;Pref=0.716;DeltaOmega=0;Pactual=0.716;
Qcmd =0.27;
%State Variables
s1=s(1); s2=s(2); s3=(s); s4=s(4); s5=s(4);
%diferential Equations
ds1dt=Ki*(Vref-s2-Rq*Qactual);
ds2dt = (1 / Tr) * (Vt – s2);
ds3dt = (1 / TGpv) * (Pref – (DeltaOmega / Rp) – s3);
ds4dt = Kip * (s3 – Pactual);
ds5dt = Kiq * (Qcmd – Qactual);
dsdt = [ds1dt; ds2dt; ds3dt; ds4dt; ds5dt];
end
%% inital Vector
s0 = [s1;s2;s3;s4;s5];
%% Time span for simulation
tspan = [0 10]; % 0 to 10 seconds
%% Solve using ode45
[t, s] = ode45(@pv_system, tspan, s0); ode45 MATLAB Answers — New Questions
Newton Forward difference method
% Confirmed case Sample data points (x, y)
data = [ 1, 88; 2, 49; 3, 47; 4, 8; 5, 34; 6, 762; 7, 98; 8, 40];
% Extract x and y values
x = data(:, 1);
y = data(:, 2);
n = length(x);
% Calculate forward differences
forward_diff = zeros(n, n);
forward_diff(:, 1) = y;
for j = 2:n
for i = 1:n-j+1
forward_diff(i, j) = forward_diff(i+1, j-1) – forward_diff(i, j-1);
end
end
% Construct the Newton Forward Difference polynomial
syms X;
P = y(1);
for j = 1:n-1
term = forward_diff(1, j);
for i = 1:j
term = term * (X – x(i));
end
P = P + term / factorial(j);
end
disp(‘Newton Forward Difference Polynomial:’);
disp(simplify(P));
Result Newton Forward Difference Polynomial: – (725*X^7)/1008 + (1651*X^6)/80 – (173233*X^5)/720 + (70651*X^4)/48 – (91321*X^3)/18 + (146407*X^2)/15 – (1996741*X)/210 + 3658
The problem now is that when I substitute each value of x, I don’t get the corresponding value of y as stated in the table. I need help on how to get the correct polynomial equation.% Confirmed case Sample data points (x, y)
data = [ 1, 88; 2, 49; 3, 47; 4, 8; 5, 34; 6, 762; 7, 98; 8, 40];
% Extract x and y values
x = data(:, 1);
y = data(:, 2);
n = length(x);
% Calculate forward differences
forward_diff = zeros(n, n);
forward_diff(:, 1) = y;
for j = 2:n
for i = 1:n-j+1
forward_diff(i, j) = forward_diff(i+1, j-1) – forward_diff(i, j-1);
end
end
% Construct the Newton Forward Difference polynomial
syms X;
P = y(1);
for j = 1:n-1
term = forward_diff(1, j);
for i = 1:j
term = term * (X – x(i));
end
P = P + term / factorial(j);
end
disp(‘Newton Forward Difference Polynomial:’);
disp(simplify(P));
Result Newton Forward Difference Polynomial: – (725*X^7)/1008 + (1651*X^6)/80 – (173233*X^5)/720 + (70651*X^4)/48 – (91321*X^3)/18 + (146407*X^2)/15 – (1996741*X)/210 + 3658
The problem now is that when I substitute each value of x, I don’t get the corresponding value of y as stated in the table. I need help on how to get the correct polynomial equation. % Confirmed case Sample data points (x, y)
data = [ 1, 88; 2, 49; 3, 47; 4, 8; 5, 34; 6, 762; 7, 98; 8, 40];
% Extract x and y values
x = data(:, 1);
y = data(:, 2);
n = length(x);
% Calculate forward differences
forward_diff = zeros(n, n);
forward_diff(:, 1) = y;
for j = 2:n
for i = 1:n-j+1
forward_diff(i, j) = forward_diff(i+1, j-1) – forward_diff(i, j-1);
end
end
% Construct the Newton Forward Difference polynomial
syms X;
P = y(1);
for j = 1:n-1
term = forward_diff(1, j);
for i = 1:j
term = term * (X – x(i));
end
P = P + term / factorial(j);
end
disp(‘Newton Forward Difference Polynomial:’);
disp(simplify(P));
Result Newton Forward Difference Polynomial: – (725*X^7)/1008 + (1651*X^6)/80 – (173233*X^5)/720 + (70651*X^4)/48 – (91321*X^3)/18 + (146407*X^2)/15 – (1996741*X)/210 + 3658
The problem now is that when I substitute each value of x, I don’t get the corresponding value of y as stated in the table. I need help on how to get the correct polynomial equation. newton forward difference method MATLAB Answers — New Questions
Gauss-Seidel for solving linear equations
Apply 4 iterations, by the Gauss-Seidel iterative method, to solve the system of linear equations,Check the solutions by matrix calculation.Apply 4 iterations, by the Gauss-Seidel iterative method, to solve the system of linear equations,Check the solutions by matrix calculation. Apply 4 iterations, by the Gauss-Seidel iterative method, to solve the system of linear equations,Check the solutions by matrix calculation. gauss-seidel MATLAB Answers — New Questions
How to find the parameters of Fraction order PID Controller?
I want to design a FOPID controller. I’ve been gone through a lot of documents and paper works but I can’t find about how to find the values of Kp, Ki, Kd, λ and μ. Can anyone suggest a website, idea or even codes to find the tuning parameters? My transfer function is 40/(7.5s + 1)I want to design a FOPID controller. I’ve been gone through a lot of documents and paper works but I can’t find about how to find the values of Kp, Ki, Kd, λ and μ. Can anyone suggest a website, idea or even codes to find the tuning parameters? My transfer function is 40/(7.5s + 1) I want to design a FOPID controller. I’ve been gone through a lot of documents and paper works but I can’t find about how to find the values of Kp, Ki, Kd, λ and μ. Can anyone suggest a website, idea or even codes to find the tuning parameters? My transfer function is 40/(7.5s + 1) fopid, pid, fractional order pid MATLAB Answers — New Questions
Which versions of Xilinx System Generator (now AMD Vitis Model Composer) support which MATLAB release?
Which versions of Xilinx System Generator for DSP / AMD Vitis Model Composer are compatible with which versions of MATLAB?Which versions of Xilinx System Generator for DSP / AMD Vitis Model Composer are compatible with which versions of MATLAB? Which versions of Xilinx System Generator for DSP / AMD Vitis Model Composer are compatible with which versions of MATLAB? xilinx, sysgen, compatibility, support MATLAB Answers — New Questions
using Gauss Jacobi method to solve a system of equations
I’m new to Matlab so don’t have the best understanding here, i need to use the jacobi method to find the values of C but i dont really know the code that i need to use.
My equations are:
(837*C3)/2000 – (6851*C2)/10000 – (1091*C1)/2500 – (821*C4)/2000
(1337*C1)/2000 + (437*C2)/2500 + (3899*C3)/10000 – (6087*C4)/10000
(1601*C2)/2500 – (2939*C1)/5000 – (477*C3)/10000 – (4921*C4)/10000
(1313*C1)/10000 – (3*C2)/10 – (8209*C3)/10000 – (292*C4)/625
A = [-0.4364 -0.6851 0.4185 -0.4105; 0.6685 0.1748 0.3899 -0.6087; -0.5878 0.6404 -0.0477 -0.4921; 0.1313 -0.3000 -0.8209 -0.4672];
B = [0;40;0;0];
please note that this is not diaganally dominant but ive been told to do it anyway – it is part of an assignment.
cheers.I’m new to Matlab so don’t have the best understanding here, i need to use the jacobi method to find the values of C but i dont really know the code that i need to use.
My equations are:
(837*C3)/2000 – (6851*C2)/10000 – (1091*C1)/2500 – (821*C4)/2000
(1337*C1)/2000 + (437*C2)/2500 + (3899*C3)/10000 – (6087*C4)/10000
(1601*C2)/2500 – (2939*C1)/5000 – (477*C3)/10000 – (4921*C4)/10000
(1313*C1)/10000 – (3*C2)/10 – (8209*C3)/10000 – (292*C4)/625
A = [-0.4364 -0.6851 0.4185 -0.4105; 0.6685 0.1748 0.3899 -0.6087; -0.5878 0.6404 -0.0477 -0.4921; 0.1313 -0.3000 -0.8209 -0.4672];
B = [0;40;0;0];
please note that this is not diaganally dominant but ive been told to do it anyway – it is part of an assignment.
cheers. I’m new to Matlab so don’t have the best understanding here, i need to use the jacobi method to find the values of C but i dont really know the code that i need to use.
My equations are:
(837*C3)/2000 – (6851*C2)/10000 – (1091*C1)/2500 – (821*C4)/2000
(1337*C1)/2000 + (437*C2)/2500 + (3899*C3)/10000 – (6087*C4)/10000
(1601*C2)/2500 – (2939*C1)/5000 – (477*C3)/10000 – (4921*C4)/10000
(1313*C1)/10000 – (3*C2)/10 – (8209*C3)/10000 – (292*C4)/625
A = [-0.4364 -0.6851 0.4185 -0.4105; 0.6685 0.1748 0.3899 -0.6087; -0.5878 0.6404 -0.0477 -0.4921; 0.1313 -0.3000 -0.8209 -0.4672];
B = [0;40;0;0];
please note that this is not diaganally dominant but ive been told to do it anyway – it is part of an assignment.
cheers. matlab, gauss jacobi MATLAB Answers — New Questions
Matlab not reading data fast enough from arduino.
My code is able to read data from the serial port correctly (it seems), however for some reason my dataIndex variable is not keeping up with the speed that I am trying to read data at (I think). While I should have 10000 data points using this code my dataIndex variable is ending at way short at about 816 instead. Has anybody else ever had an issue like this?
Another but not as important issue I have been having is this occassional error code:
Warning: Matching failure in format. The format specified for conversion, ‘%d’, is incorrect.
Unable to perform assignment because the left and right sides have a different number of elements.
It only comes up sometimes, and it seems like its because my value variable occasionally becomes a char.
Any advice that could be offered on any of this would be greatly appreciated!
%% Matlab code
clc;
clear;
close all;
% % Closes serial ports
fclose(instrfind());
% % Defines serial connection
arduino = serial(‘COM11′,’BaudRate’,9600);
% % Initializes serial connection
fopen(arduino);
% % Duration to record data(in seconds).
duration = 10;
% % Time interval between consecutive data reads.
stepTime = .001;
% % Total number of data samples to be recorded.
samples = duration/stepTime;
% % Initialize arrays for storing data and timestamps.
valueArray = zeros(1,samples);
dataIndex = 1;
tObj = tic;
while(toc(tObj) <= duration)
% % Gets data value from serial port
value = fscanf(arduino,’%d’);
% % Store the read data in the corresponding data array.
valueArray(dataIndex) = value;
dataIndex = dataIndex + 1;
% % Read data from Arduino pins in intervals specified by the variable ‘stepTime’.
pause(stepTime);
end
% % Closes serial ports
fclose(instrfind());
%% Arduino code
const int analogInPin = A0;
int sensorValue = 0;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
sensorValue = analogRead(analogInPin);
Serial.println(sensorValue);
delay(10);
}My code is able to read data from the serial port correctly (it seems), however for some reason my dataIndex variable is not keeping up with the speed that I am trying to read data at (I think). While I should have 10000 data points using this code my dataIndex variable is ending at way short at about 816 instead. Has anybody else ever had an issue like this?
Another but not as important issue I have been having is this occassional error code:
Warning: Matching failure in format. The format specified for conversion, ‘%d’, is incorrect.
Unable to perform assignment because the left and right sides have a different number of elements.
It only comes up sometimes, and it seems like its because my value variable occasionally becomes a char.
Any advice that could be offered on any of this would be greatly appreciated!
%% Matlab code
clc;
clear;
close all;
% % Closes serial ports
fclose(instrfind());
% % Defines serial connection
arduino = serial(‘COM11′,’BaudRate’,9600);
% % Initializes serial connection
fopen(arduino);
% % Duration to record data(in seconds).
duration = 10;
% % Time interval between consecutive data reads.
stepTime = .001;
% % Total number of data samples to be recorded.
samples = duration/stepTime;
% % Initialize arrays for storing data and timestamps.
valueArray = zeros(1,samples);
dataIndex = 1;
tObj = tic;
while(toc(tObj) <= duration)
% % Gets data value from serial port
value = fscanf(arduino,’%d’);
% % Store the read data in the corresponding data array.
valueArray(dataIndex) = value;
dataIndex = dataIndex + 1;
% % Read data from Arduino pins in intervals specified by the variable ‘stepTime’.
pause(stepTime);
end
% % Closes serial ports
fclose(instrfind());
%% Arduino code
const int analogInPin = A0;
int sensorValue = 0;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
sensorValue = analogRead(analogInPin);
Serial.println(sensorValue);
delay(10);
} My code is able to read data from the serial port correctly (it seems), however for some reason my dataIndex variable is not keeping up with the speed that I am trying to read data at (I think). While I should have 10000 data points using this code my dataIndex variable is ending at way short at about 816 instead. Has anybody else ever had an issue like this?
Another but not as important issue I have been having is this occassional error code:
Warning: Matching failure in format. The format specified for conversion, ‘%d’, is incorrect.
Unable to perform assignment because the left and right sides have a different number of elements.
It only comes up sometimes, and it seems like its because my value variable occasionally becomes a char.
Any advice that could be offered on any of this would be greatly appreciated!
%% Matlab code
clc;
clear;
close all;
% % Closes serial ports
fclose(instrfind());
% % Defines serial connection
arduino = serial(‘COM11′,’BaudRate’,9600);
% % Initializes serial connection
fopen(arduino);
% % Duration to record data(in seconds).
duration = 10;
% % Time interval between consecutive data reads.
stepTime = .001;
% % Total number of data samples to be recorded.
samples = duration/stepTime;
% % Initialize arrays for storing data and timestamps.
valueArray = zeros(1,samples);
dataIndex = 1;
tObj = tic;
while(toc(tObj) <= duration)
% % Gets data value from serial port
value = fscanf(arduino,’%d’);
% % Store the read data in the corresponding data array.
valueArray(dataIndex) = value;
dataIndex = dataIndex + 1;
% % Read data from Arduino pins in intervals specified by the variable ‘stepTime’.
pause(stepTime);
end
% % Closes serial ports
fclose(instrfind());
%% Arduino code
const int analogInPin = A0;
int sensorValue = 0;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
sensorValue = analogRead(analogInPin);
Serial.println(sensorValue);
delay(10);
} arduino, serial, char MATLAB Answers — New Questions
How to add a 2D plot to an existing 3D plot by sharing the same axes?
Dear Matlab Community,
I am wondering how to replicate a plot that I have seen in a journal paper. The 3D plot can be created using various functions (mesh, contour3, surf etc.) but I am unable to add another plot in a way that they both use the same axes? Has anyone come across a solution for this?Dear Matlab Community,
I am wondering how to replicate a plot that I have seen in a journal paper. The 3D plot can be created using various functions (mesh, contour3, surf etc.) but I am unable to add another plot in a way that they both use the same axes? Has anyone come across a solution for this? Dear Matlab Community,
I am wondering how to replicate a plot that I have seen in a journal paper. The 3D plot can be created using various functions (mesh, contour3, surf etc.) but I am unable to add another plot in a way that they both use the same axes? Has anyone come across a solution for this? contour3, 3d plots MATLAB Answers — New Questions
2D plot an equation
Can anybody write a code to plot this equation in matlab ? j(0)is constant number.w and lamda are constant .Can anybody write a code to plot this equation in matlab ? j(0)is constant number.w and lamda are constant . Can anybody write a code to plot this equation in matlab ? j(0)is constant number.w and lamda are constant . 2d plot MATLAB Answers — New Questions
how to create a robot from DH parameters
Hello,
I have the DH matrix of my robot manipulator.
[0.033 -pi/2 0.147 q1;
0.155 0 0 q2-pi/2;
0.135 0 0 q3;
0 pi/2 0 q4+pi/2;
0 0 0.218 q5];
I am trying to create a model of the robot along what’s used here:
https://www.mathworks.com/help/robotics/ref/rigidbodytree.html#d122e13383
the forward kinematics function getTransform() doesn’t return the right Homogeneous transormation matrix, which means the model isn’t correct.
the code I wrote:
dhparams=[0.033 -pi/2 0.147 0;
0.155 0 0 -pi/2;
0.135 0 0 0;
0 pi/2 0 pi/2;
0 0 0.218 0];
robot = rigidBodyTree(‘DataFormat’,’row’);
body1 = rigidBody(‘body1’);
jnt1 = rigidBodyJoint(‘jnt1′,’revolute’);
body2 = rigidBody(‘body2’);
jnt2 = rigidBodyJoint(‘jnt2′,’revolute’);
body3 = rigidBody(‘body3’);
jnt3 = rigidBodyJoint(‘jnt3′,’revolute’);
body4 = rigidBody(‘body4’);
jnt4 = rigidBodyJoint(‘jnt4′,’revolute’);
body5 = rigidBody(‘body5’);
jnt5 = rigidBodyJoint(‘jnt5′,’revolute’);
;
setFixedTransform(jnt1,dhparams(1,:),’dh’);
setFixedTransform(jnt2,dhparams(2,:),’dh’);
setFixedTransform(jnt3,dhparams(3,:),’dh’);
setFixedTransform(jnt4,dhparams(4,:),’dh’);
setFixedTransform(jnt5,dhparams(5,:),’dh’);
body1.Joint = jnt1;
body2.Joint = jnt2;
body3.Joint = jnt3;
body4.Joint = jnt4;
body5.Joint = jnt5;
addBody(robot,body1,’base’)
addBody(robot,body2,’body1′)
addBody(robot,body3,’body2′)
addBody(robot,body4,’body3′)
addBody(robot,body5,’body4′)
transform = getTransform(robot,[0.1 0.1 0.1 0.1 0.1],’body5′)Hello,
I have the DH matrix of my robot manipulator.
[0.033 -pi/2 0.147 q1;
0.155 0 0 q2-pi/2;
0.135 0 0 q3;
0 pi/2 0 q4+pi/2;
0 0 0.218 q5];
I am trying to create a model of the robot along what’s used here:
https://www.mathworks.com/help/robotics/ref/rigidbodytree.html#d122e13383
the forward kinematics function getTransform() doesn’t return the right Homogeneous transormation matrix, which means the model isn’t correct.
the code I wrote:
dhparams=[0.033 -pi/2 0.147 0;
0.155 0 0 -pi/2;
0.135 0 0 0;
0 pi/2 0 pi/2;
0 0 0.218 0];
robot = rigidBodyTree(‘DataFormat’,’row’);
body1 = rigidBody(‘body1’);
jnt1 = rigidBodyJoint(‘jnt1′,’revolute’);
body2 = rigidBody(‘body2’);
jnt2 = rigidBodyJoint(‘jnt2′,’revolute’);
body3 = rigidBody(‘body3’);
jnt3 = rigidBodyJoint(‘jnt3′,’revolute’);
body4 = rigidBody(‘body4’);
jnt4 = rigidBodyJoint(‘jnt4′,’revolute’);
body5 = rigidBody(‘body5’);
jnt5 = rigidBodyJoint(‘jnt5′,’revolute’);
;
setFixedTransform(jnt1,dhparams(1,:),’dh’);
setFixedTransform(jnt2,dhparams(2,:),’dh’);
setFixedTransform(jnt3,dhparams(3,:),’dh’);
setFixedTransform(jnt4,dhparams(4,:),’dh’);
setFixedTransform(jnt5,dhparams(5,:),’dh’);
body1.Joint = jnt1;
body2.Joint = jnt2;
body3.Joint = jnt3;
body4.Joint = jnt4;
body5.Joint = jnt5;
addBody(robot,body1,’base’)
addBody(robot,body2,’body1′)
addBody(robot,body3,’body2′)
addBody(robot,body4,’body3′)
addBody(robot,body5,’body4′)
transform = getTransform(robot,[0.1 0.1 0.1 0.1 0.1],’body5′) Hello,
I have the DH matrix of my robot manipulator.
[0.033 -pi/2 0.147 q1;
0.155 0 0 q2-pi/2;
0.135 0 0 q3;
0 pi/2 0 q4+pi/2;
0 0 0.218 q5];
I am trying to create a model of the robot along what’s used here:
https://www.mathworks.com/help/robotics/ref/rigidbodytree.html#d122e13383
the forward kinematics function getTransform() doesn’t return the right Homogeneous transormation matrix, which means the model isn’t correct.
the code I wrote:
dhparams=[0.033 -pi/2 0.147 0;
0.155 0 0 -pi/2;
0.135 0 0 0;
0 pi/2 0 pi/2;
0 0 0.218 0];
robot = rigidBodyTree(‘DataFormat’,’row’);
body1 = rigidBody(‘body1’);
jnt1 = rigidBodyJoint(‘jnt1′,’revolute’);
body2 = rigidBody(‘body2’);
jnt2 = rigidBodyJoint(‘jnt2′,’revolute’);
body3 = rigidBody(‘body3’);
jnt3 = rigidBodyJoint(‘jnt3′,’revolute’);
body4 = rigidBody(‘body4’);
jnt4 = rigidBodyJoint(‘jnt4′,’revolute’);
body5 = rigidBody(‘body5’);
jnt5 = rigidBodyJoint(‘jnt5′,’revolute’);
;
setFixedTransform(jnt1,dhparams(1,:),’dh’);
setFixedTransform(jnt2,dhparams(2,:),’dh’);
setFixedTransform(jnt3,dhparams(3,:),’dh’);
setFixedTransform(jnt4,dhparams(4,:),’dh’);
setFixedTransform(jnt5,dhparams(5,:),’dh’);
body1.Joint = jnt1;
body2.Joint = jnt2;
body3.Joint = jnt3;
body4.Joint = jnt4;
body5.Joint = jnt5;
addBody(robot,body1,’base’)
addBody(robot,body2,’body1′)
addBody(robot,body3,’body2′)
addBody(robot,body4,’body3′)
addBody(robot,body5,’body4′)
transform = getTransform(robot,[0.1 0.1 0.1 0.1 0.1],’body5′) manipulators, rigidbody, forward kinematics, rigidbodytree MATLAB Answers — New Questions
How used G.711 codec?
<<http://mathworks.com/matlabcentral/images/surf.gif>><<http://mathworks.com/matlabcentral/images/surf.gif>> <<http://mathworks.com/matlabcentral/images/surf.gif>> dsp, communication MATLAB Answers — New Questions
Got an error saying I couldn’t run MATLAB, did what it said to fix but now the installation of the MATLAB connector is loading forever.
Got an error saying I couldn’t run MATLAB, did what it said to fix but now the installation of the MATLAB connector is loading forever. Used the help button and followed what to do and now have bee waiting for the installation for a very long time. I had a license issue so I had to go delete some files and download this.Got an error saying I couldn’t run MATLAB, did what it said to fix but now the installation of the MATLAB connector is loading forever. Used the help button and followed what to do and now have bee waiting for the installation for a very long time. I had a license issue so I had to go delete some files and download this. Got an error saying I couldn’t run MATLAB, did what it said to fix but now the installation of the MATLAB connector is loading forever. Used the help button and followed what to do and now have bee waiting for the installation for a very long time. I had a license issue so I had to go delete some files and download this. error, matlab connector, installation MATLAB Answers — New Questions
integral using “int” function
Hello everyone
I used function "int" to integral three functions F1xy, F2xy and F3xy and plot g1 ,g2 and g3 but does not works , can you help me to solve this problem?
result exicution
>>
g1 =
int((((615013805111497776896056633613405*t^2)/3569704090242693994614716226338816 – 8918236563554137/2305843009213693952)^2 + ((6125818010313341771482361107925645*t^2)/3569704090242693994614716226338816 – 5551856489561907/144115188075855872)^2)^(1/2), t)
g2 =
int((((245*(t/25 – (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((7356568495562081*cos((8*pi*t)/5))/72057594037927936 – (1703936755052999*cos((4*pi*t)/5))/4503599627370496 + 1/25)^2/2)^2 + ((245*(t/25 + (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((1703936755052999*cos((4*pi*t)/5))/4503599627370496 + (7356568495562081*cos((8*pi*t)/5))/72057594037927936 + 1/25)^2/2)^2)^(1/2), t)
g3 =
int((((245*((5000333870613589*t)/18014398509481984 – 444897748731878793/1801439850948198400)^2)/11 – 5551856489561907/144115188075855872)^2 + ((245*((1584380140315613*t)/18014398509481984 – 378191502634271457/1801439850948198400)^2)/11 – 8918236563554137/2305843009213693952)^2)^(1/2), t)Hello everyone
I used function "int" to integral three functions F1xy, F2xy and F3xy and plot g1 ,g2 and g3 but does not works , can you help me to solve this problem?
result exicution
>>
g1 =
int((((615013805111497776896056633613405*t^2)/3569704090242693994614716226338816 – 8918236563554137/2305843009213693952)^2 + ((6125818010313341771482361107925645*t^2)/3569704090242693994614716226338816 – 5551856489561907/144115188075855872)^2)^(1/2), t)
g2 =
int((((245*(t/25 – (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((7356568495562081*cos((8*pi*t)/5))/72057594037927936 – (1703936755052999*cos((4*pi*t)/5))/4503599627370496 + 1/25)^2/2)^2 + ((245*(t/25 + (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((1703936755052999*cos((4*pi*t)/5))/4503599627370496 + (7356568495562081*cos((8*pi*t)/5))/72057594037927936 + 1/25)^2/2)^2)^(1/2), t)
g3 =
int((((245*((5000333870613589*t)/18014398509481984 – 444897748731878793/1801439850948198400)^2)/11 – 5551856489561907/144115188075855872)^2 + ((245*((1584380140315613*t)/18014398509481984 – 378191502634271457/1801439850948198400)^2)/11 – 8918236563554137/2305843009213693952)^2)^(1/2), t) Hello everyone
I used function "int" to integral three functions F1xy, F2xy and F3xy and plot g1 ,g2 and g3 but does not works , can you help me to solve this problem?
result exicution
>>
g1 =
int((((615013805111497776896056633613405*t^2)/3569704090242693994614716226338816 – 8918236563554137/2305843009213693952)^2 + ((6125818010313341771482361107925645*t^2)/3569704090242693994614716226338816 – 5551856489561907/144115188075855872)^2)^(1/2), t)
g2 =
int((((245*(t/25 – (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((7356568495562081*cos((8*pi*t)/5))/72057594037927936 – (1703936755052999*cos((4*pi*t)/5))/4503599627370496 + 1/25)^2/2)^2 + ((245*(t/25 + (5423799145652977*sin((4*pi*t)/5))/36028797018963968 + (2927085600657033*sin((8*pi*t)/5))/144115188075855872 – 1/40)^2)/11 – ((1703936755052999*cos((4*pi*t)/5))/4503599627370496 + (7356568495562081*cos((8*pi*t)/5))/72057594037927936 + 1/25)^2/2)^2)^(1/2), t)
g3 =
int((((245*((5000333870613589*t)/18014398509481984 – 444897748731878793/1801439850948198400)^2)/11 – 5551856489561907/144115188075855872)^2 + ((245*((1584380140315613*t)/18014398509481984 – 378191502634271457/1801439850948198400)^2)/11 – 8918236563554137/2305843009213693952)^2)^(1/2), t) using int function integral, plot using fplot MATLAB Answers — New Questions
