Hi,
I am trying to model a large PV farm with power rating of 150MW and Voltage rating of 115KV. I am taking "400KW grid connected PV Simulink Model" as a reference.The model used avergae model inverter and boost converter. But I am having hard time to design the boost converter where I plan to increase the voltage from 500V to 1500V approximately. I observed that the boost converter does not change the voltage above 700V. Can anyone help me with the problem? or Can anyone suggest me better reference model with which I can work on? It is crucial to highlight, the main objective is to convert the model to a RT-Lab model.

Thank You in advance.Hi,
I am trying to model a large PV farm with power rating of 150MW and Voltage rating of 115KV. I am taking "400KW grid connected PV Simulink Model" as a reference.The model used avergae model inverter and boost converter. But I am having hard time to design the boost converter where I plan to increase the voltage from 500V to 1500V approximately. I observed that the boost converter does not change the voltage above 700V. Can anyone help me with the problem? or Can anyone suggest me better reference model with which I can work on? It is crucial to highlight, the main objective is to convert the model to a RT-Lab model.

Thank You in advance. Hi,
I am trying to model a large PV farm with power rating of 150MW and Voltage rating of 115KV. I am taking "400KW grid connected PV Simulink Model" as a reference.The model used avergae model inverter and boost converter. But I am having hard time to design the boost converter where I plan to increase the voltage from 500V to 1500V approximately. I observed that the boost converter does not change the voltage above 700V. Can anyone help me with the problem? or Can anyone suggest me better reference model with which I can work on? It is crucial to highlight, the main objective is to convert the model to a RT-Lab model.

Thank You in advance. simulation, simulink MATLAB Answers — New Questions

​

I have been working in the last months on a software interface in AppDesigner. I’m down to about 11,000 lines of code. Today, when I wanted to update, I opened the application and saw that the code was missing. All callbacks are gone, including StartupFcn. There are only a few lines of code specific to the axes and buttons in the interface.
If I open and run the code it does not work. If I run the mlapp file, it opens and does its job. But I don’t know where the code disappeared. Something like this happened to you ever???
Thanks!I have been working in the last months on a software interface in AppDesigner. I’m down to about 11,000 lines of code. Today, when I wanted to update, I opened the application and saw that the code was missing. All callbacks are gone, including StartupFcn. There are only a few lines of code specific to the axes and buttons in the interface.
If I open and run the code it does not work. If I run the mlapp file, it opens and does its job. But I don’t know where the code disappeared. Something like this happened to you ever???
Thanks! I have been working in the last months on a software interface in AppDesigner. I’m down to about 11,000 lines of code. Today, when I wanted to update, I opened the application and saw that the code was missing. All callbacks are gone, including StartupFcn. There are only a few lines of code specific to the axes and buttons in the interface.
If I open and run the code it does not work. If I run the mlapp file, it opens and does its job. But I don’t know where the code disappeared. Something like this happened to you ever???
Thanks! appdesigner, missing code, matlab, interface MATLAB Answers — New Questions

​

Hi,
I have a matlab code to analyze signal process. After I compiled the code by using application compiler, I faced an issue like below when I run the compiled .exe file.
"Invalid file identifier. Use fopen to generate a valid file identifier. Error in => main.m at line 194"
The wired thing is that I do not use fopen function and any files at line 194.
Could you suggest some ways to solve this issue?
Thank youHi,
I have a matlab code to analyze signal process. After I compiled the code by using application compiler, I faced an issue like below when I run the compiled .exe file.
"Invalid file identifier. Use fopen to generate a valid file identifier. Error in => main.m at line 194"
The wired thing is that I do not use fopen function and any files at line 194.
Could you suggest some ways to solve this issue?
Thank you Hi,
I have a matlab code to analyze signal process. After I compiled the code by using application compiler, I faced an issue like below when I run the compiled .exe file.
"Invalid file identifier. Use fopen to generate a valid file identifier. Error in => main.m at line 194"
The wired thing is that I do not use fopen function and any files at line 194.
Could you suggest some ways to solve this issue?
Thank you thingspeak MATLAB Answers — New Questions

​

I am working on a set of datapoints like so:
x = [270 280 290 300 310 320 330 340 350 0 10 20 30 40 50 60 70 80 90]
y = [10000 9000 5500 2500 900 2500 5500 9000 10000 9000 5500 2500 900 2500 5500 9000 10000]
I have defined a sine^2(x) function with a phase shift of 45 degree, for fitting along these data points, because my data points are shifted that way.
I define x1 = 1:numel(x);
Using set(gca,’xTick’,x1,’XTickLabel’,x), I know that I can display in the x-axis order 270,…,0,…,90, without which I would get them in the x-axis order 0…90,…,270,…,350.
But, how do I apply that order for the fitting function itself? That doesn’t seem to work.
I attach the code for your reference.

function[]=plotdata(filename)
S = load(filename);
C = struct2cell(S);
M = cell2mat(C);
x = M(:,1)
y = M(:,end)
x1 = 1:numel(x);
mean(y)
xlocs = [270 0 90]
%freq = 1/(2*mean(diff(xlocs))) %diff(xlocs)
freq = 1 / (2*mean(diff(xlocs)))
[lb,ub] = bounds(y)
fcn = @(b,x)b(1).*cos(2*pi*x*b(2)+b(3)+(pi/4)).^2+b(4)
B0 = [ub-lb; freq; 0; lb]
myfun = @(b)norm(fcn(b,x) – y);
[B,fv] = fminsearch(myfun,B0)
xv = linspace(max(x),min(x),1000); %A smoother x vector
figure
plot(x, y, ‘*’, ‘DisplayName’,’Data’)
hold on
plot(xv, fcn(B,xv), ‘-r’, ‘DisplayName’,’Regression’)
hold off
%set(gca,’xTick’,x1,’XTickLabel’,x)
endI am working on a set of datapoints like so:
x = [270 280 290 300 310 320 330 340 350 0 10 20 30 40 50 60 70 80 90]
y = [10000 9000 5500 2500 900 2500 5500 9000 10000 9000 5500 2500 900 2500 5500 9000 10000]
I have defined a sine^2(x) function with a phase shift of 45 degree, for fitting along these data points, because my data points are shifted that way.
I define x1 = 1:numel(x);
Using set(gca,’xTick’,x1,’XTickLabel’,x), I know that I can display in the x-axis order 270,…,0,…,90, without which I would get them in the x-axis order 0…90,…,270,…,350.
But, how do I apply that order for the fitting function itself? That doesn’t seem to work.
I attach the code for your reference.

function[]=plotdata(filename)
S = load(filename);
C = struct2cell(S);
M = cell2mat(C);
x = M(:,1)
y = M(:,end)
x1 = 1:numel(x);
mean(y)
xlocs = [270 0 90]
%freq = 1/(2*mean(diff(xlocs))) %diff(xlocs)
freq = 1 / (2*mean(diff(xlocs)))
[lb,ub] = bounds(y)
fcn = @(b,x)b(1).*cos(2*pi*x*b(2)+b(3)+(pi/4)).^2+b(4)
B0 = [ub-lb; freq; 0; lb]
myfun = @(b)norm(fcn(b,x) – y);
[B,fv] = fminsearch(myfun,B0)
xv = linspace(max(x),min(x),1000); %A smoother x vector
figure
plot(x, y, ‘*’, ‘DisplayName’,’Data’)
hold on
plot(xv, fcn(B,xv), ‘-r’, ‘DisplayName’,’Regression’)
hold off
%set(gca,’xTick’,x1,’XTickLabel’,x)
end I am working on a set of datapoints like so:
x = [270 280 290 300 310 320 330 340 350 0 10 20 30 40 50 60 70 80 90]
y = [10000 9000 5500 2500 900 2500 5500 9000 10000 9000 5500 2500 900 2500 5500 9000 10000]
I have defined a sine^2(x) function with a phase shift of 45 degree, for fitting along these data points, because my data points are shifted that way.
I define x1 = 1:numel(x);
Using set(gca,’xTick’,x1,’XTickLabel’,x), I know that I can display in the x-axis order 270,…,0,…,90, without which I would get them in the x-axis order 0…90,…,270,…,350.
But, how do I apply that order for the fitting function itself? That doesn’t seem to work.
I attach the code for your reference.

function[]=plotdata(filename)
S = load(filename);
C = struct2cell(S);
M = cell2mat(C);
x = M(:,1)
y = M(:,end)
x1 = 1:numel(x);
mean(y)
xlocs = [270 0 90]
%freq = 1/(2*mean(diff(xlocs))) %diff(xlocs)
freq = 1 / (2*mean(diff(xlocs)))
[lb,ub] = bounds(y)
fcn = @(b,x)b(1).*cos(2*pi*x*b(2)+b(3)+(pi/4)).^2+b(4)
B0 = [ub-lb; freq; 0; lb]
myfun = @(b)norm(fcn(b,x) – y);
[B,fv] = fminsearch(myfun,B0)
xv = linspace(max(x),min(x),1000); %A smoother x vector
figure
plot(x, y, ‘*’, ‘DisplayName’,’Data’)
hold on
plot(xv, fcn(B,xv), ‘-r’, ‘DisplayName’,’Regression’)
hold off
%set(gca,’xTick’,x1,’XTickLabel’,x)
end curve fitting, reordering, plot MATLAB Answers — New Questions

​

i have used taylor series to find the first derivative of the following function F and got 2 diffrent approximations ,
i wanted to check which one has a lower error more precision from the 2 approximations,
i started by understanding how to graph the function and its derviative wrote the 2 expressions i got , then tried to graph each graphs error , i have not yet added axis names and so on , but i reached a certain place where i am not sure if the first approximation values do indeed make sense i expected a diffrent graph , secondly i was asked to do a log log graph to comapre the errors but the values i got were already, straight lines so i seem to be missing something here is the code for now
we were asked to look at h between 10^-1 to 10^-15 did not specifiy how many look at probable this is one of the reasons that i would have beem able to use log log if i kept the x axis 10^-15 to 10^-1 and not set 20 numbers in the set
,thanks for the guidness in advance
%testing a bit too far
f = @cos;
x = 1;
h=0:0.1:8*pi;
plot(x+h,f(x+h),’*’,x-h,f(x-h),’*’)
d_f =@(x) -sin(x);

exact = d_f(x);
h=0:0.1:8*pi;
hold on
plot(x+h,d_f(x+h),’*’,x-h,d_f(x-h),’*’)
exact = d_f(x);
hold off
d_f(1)
f(1)

%testing near the point of interest
h2=0:0.001:10^-2
plot(x+h2,f(x+h2),’*’,x-h2,f(x-h2),’*’)

plot(x+h2,d_f(x+h2),’*’,x-h2,d_f(x-h2),’*’)

%indentifying the appoximations we got
approx_1=@(f, x, h) (f(x + h) – f(x)) / h;
approx_2=@(f, x, h) (f(x + h) – f(x-h)) / (2*h);
d_f(1)

h = linspace(10^-15,10^-1,20)
plot(x+h,approx_1(f,x,h),’*’,x-h,approx_1(f,x,-h),’*’)

plot(x+h,approx_2(f,x,h),’*’,x-h,approx_2(f,x,-h),’*’)
v_1_up=approx_1(f,x,h)-d_f(1)

v_2_up=approx_2(f,x,h)-d_f(1)

v_1_down=approx_1(f,x,-h)-d_f(1)
v_2_down=approx_2(f,x,-h)-d_f(1)
plot(h,v_1_up,’*’,h,v_1_down,’*’)
plot(h,v_2_up,’*’,h,v_2_down,’*’)i have used taylor series to find the first derivative of the following function F and got 2 diffrent approximations ,
i wanted to check which one has a lower error more precision from the 2 approximations,
i started by understanding how to graph the function and its derviative wrote the 2 expressions i got , then tried to graph each graphs error , i have not yet added axis names and so on , but i reached a certain place where i am not sure if the first approximation values do indeed make sense i expected a diffrent graph , secondly i was asked to do a log log graph to comapre the errors but the values i got were already, straight lines so i seem to be missing something here is the code for now
we were asked to look at h between 10^-1 to 10^-15 did not specifiy how many look at probable this is one of the reasons that i would have beem able to use log log if i kept the x axis 10^-15 to 10^-1 and not set 20 numbers in the set
,thanks for the guidness in advance
%testing a bit too far
f = @cos;
x = 1;
h=0:0.1:8*pi;
plot(x+h,f(x+h),’*’,x-h,f(x-h),’*’)
d_f =@(x) -sin(x);

exact = d_f(x);
h=0:0.1:8*pi;
hold on
plot(x+h,d_f(x+h),’*’,x-h,d_f(x-h),’*’)
exact = d_f(x);
hold off
d_f(1)
f(1)

%testing near the point of interest
h2=0:0.001:10^-2
plot(x+h2,f(x+h2),’*’,x-h2,f(x-h2),’*’)

plot(x+h2,d_f(x+h2),’*’,x-h2,d_f(x-h2),’*’)

%indentifying the appoximations we got
approx_1=@(f, x, h) (f(x + h) – f(x)) / h;
approx_2=@(f, x, h) (f(x + h) – f(x-h)) / (2*h);
d_f(1)

h = linspace(10^-15,10^-1,20)
plot(x+h,approx_1(f,x,h),’*’,x-h,approx_1(f,x,-h),’*’)

plot(x+h,approx_2(f,x,h),’*’,x-h,approx_2(f,x,-h),’*’)
v_1_up=approx_1(f,x,h)-d_f(1)

v_2_up=approx_2(f,x,h)-d_f(1)

v_1_down=approx_1(f,x,-h)-d_f(1)
v_2_down=approx_2(f,x,-h)-d_f(1)
plot(h,v_1_up,’*’,h,v_1_down,’*’)
plot(h,v_2_up,’*’,h,v_2_down,’*’) i have used taylor series to find the first derivative of the following function F and got 2 diffrent approximations ,
i wanted to check which one has a lower error more precision from the 2 approximations,
i started by understanding how to graph the function and its derviative wrote the 2 expressions i got , then tried to graph each graphs error , i have not yet added axis names and so on , but i reached a certain place where i am not sure if the first approximation values do indeed make sense i expected a diffrent graph , secondly i was asked to do a log log graph to comapre the errors but the values i got were already, straight lines so i seem to be missing something here is the code for now
we were asked to look at h between 10^-1 to 10^-15 did not specifiy how many look at probable this is one of the reasons that i would have beem able to use log log if i kept the x axis 10^-15 to 10^-1 and not set 20 numbers in the set
,thanks for the guidness in advance
%testing a bit too far
f = @cos;
x = 1;
h=0:0.1:8*pi;
plot(x+h,f(x+h),’*’,x-h,f(x-h),’*’)
d_f =@(x) -sin(x);

exact = d_f(x);
h=0:0.1:8*pi;
hold on
plot(x+h,d_f(x+h),’*’,x-h,d_f(x-h),’*’)
exact = d_f(x);
hold off
d_f(1)
f(1)

%testing near the point of interest
h2=0:0.001:10^-2
plot(x+h2,f(x+h2),’*’,x-h2,f(x-h2),’*’)

plot(x+h2,d_f(x+h2),’*’,x-h2,d_f(x-h2),’*’)

%indentifying the appoximations we got
approx_1=@(f, x, h) (f(x + h) – f(x)) / h;
approx_2=@(f, x, h) (f(x + h) – f(x-h)) / (2*h);
d_f(1)

h = linspace(10^-15,10^-1,20)
plot(x+h,approx_1(f,x,h),’*’,x-h,approx_1(f,x,-h),’*’)

plot(x+h,approx_2(f,x,h),’*’,x-h,approx_2(f,x,-h),’*’)
v_1_up=approx_1(f,x,h)-d_f(1)

v_2_up=approx_2(f,x,h)-d_f(1)

v_1_down=approx_1(f,x,-h)-d_f(1)
v_2_down=approx_2(f,x,-h)-d_f(1)
plot(h,v_1_up,’*’,h,v_1_down,’*’)
plot(h,v_2_up,’*’,h,v_2_down,’*’) plot, data MATLAB Answers — New Questions

​

Hello,
How read in simulink model value of transformerError_Input where E2E Transformer write value of error?

In help Configure AUTOSAR Sender-Receiver Communication – MATLAB & Simulink (mathworks.com) it is describe that:
The generated C code contains RTE read and write API calls that pass the transformer error argument.
void Runnable(void)
{
Rte_TransformerError transformerError_Input;
float64 tmpRead;
…
/* Inport: ‘<Root>/Input’ */
Rte_Read_RPort_InputDE(&tmpRead, &transformerError_Input);
…
/* Outport: ‘<Root>/Output’… */
(void) Rte_Write_PPort_OutputDE(data, &transformerError_Input);
…
}

I see in generated C code that it is created local variable transformerError_Input but i don’t know where in simulink model there is an equivalent of transformerError_Input.

For example:
If i need to rewrite the value from local variable transformerError_Input, how can i do it in simulnik model.Hello,
How read in simulink model value of transformerError_Input where E2E Transformer write value of error?

In help Configure AUTOSAR Sender-Receiver Communication – MATLAB & Simulink (mathworks.com) it is describe that:
The generated C code contains RTE read and write API calls that pass the transformer error argument.
void Runnable(void)
{
Rte_TransformerError transformerError_Input;
float64 tmpRead;
…
/* Inport: ‘<Root>/Input’ */
Rte_Read_RPort_InputDE(&tmpRead, &transformerError_Input);
…
/* Outport: ‘<Root>/Output’… */
(void) Rte_Write_PPort_OutputDE(data, &transformerError_Input);
…
}

I see in generated C code that it is created local variable transformerError_Input but i don’t know where in simulink model there is an equivalent of transformerError_Input.

For example:
If i need to rewrite the value from local variable transformerError_Input, how can i do it in simulnik model. Hello,
How read in simulink model value of transformerError_Input where E2E Transformer write value of error?

In help Configure AUTOSAR Sender-Receiver Communication – MATLAB & Simulink (mathworks.com) it is describe that:
The generated C code contains RTE read and write API calls that pass the transformer error argument.
void Runnable(void)
{
Rte_TransformerError transformerError_Input;
float64 tmpRead;
…
/* Inport: ‘<Root>/Input’ */
Rte_Read_RPort_InputDE(&tmpRead, &transformerError_Input);
…
/* Outport: ‘<Root>/Output’… */
(void) Rte_Write_PPort_OutputDE(data, &transformerError_Input);
…
}

I see in generated C code that it is created local variable transformerError_Input but i don’t know where in simulink model there is an equivalent of transformerError_Input.

For example:
If i need to rewrite the value from local variable transformerError_Input, how can i do it in simulnik model. e2e transformer MATLAB Answers — New Questions

​

hello,
i am having troubles solving the following problem:
solve and plot for x and y
x+y+e+t>=0
And
x*y-e*t>=0
where x and y are the two variables while e and t are two constants whose values has to vary in a range: i am trying to see the effect of e and t on the system represented by x and y.
basically i would like to obtain on the same graph different curves in x and y for a fixed number of combinations of e and t.
my code so far is:
n= 21;
x = linspace(-100, 100, n);
y = linspace(-100, 100, n);
[X, Y] = meshgrid(x, y);
a = 50;
b = 5;
e = linspace(-a, a, b);
t = linspace(-a, a, b);
Z = zeros(n, n);
for k = 1:b
for s = 1:b
b = X + Y + e(k) + t(s);
d = X.*Y – e(k).*t(s);
for i= 1:n
for j= 1:n
if b(i,j) >= 0
Z(i,j) = d(i,j);
else
Z(i,j) = -1;
end
end
v = [0, 0];
contour(X, Y, Z, v, ‘LineWidth’, 1.5)
grid on
hold on
end
end
end
could anybody please give me any suggestions on how to improve it, as the result so far is not what i expect.
thank you very muchhello,
i am having troubles solving the following problem:
solve and plot for x and y
x+y+e+t>=0
And
x*y-e*t>=0
where x and y are the two variables while e and t are two constants whose values has to vary in a range: i am trying to see the effect of e and t on the system represented by x and y.
basically i would like to obtain on the same graph different curves in x and y for a fixed number of combinations of e and t.
my code so far is:
n= 21;
x = linspace(-100, 100, n);
y = linspace(-100, 100, n);
[X, Y] = meshgrid(x, y);
a = 50;
b = 5;
e = linspace(-a, a, b);
t = linspace(-a, a, b);
Z = zeros(n, n);
for k = 1:b
for s = 1:b
b = X + Y + e(k) + t(s);
d = X.*Y – e(k).*t(s);
for i= 1:n
for j= 1:n
if b(i,j) >= 0
Z(i,j) = d(i,j);
else
Z(i,j) = -1;
end
end
v = [0, 0];
contour(X, Y, Z, v, ‘LineWidth’, 1.5)
grid on
hold on
end
end
end
could anybody please give me any suggestions on how to improve it, as the result so far is not what i expect.
thank you very much hello,
i am having troubles solving the following problem:
solve and plot for x and y
x+y+e+t>=0
And
x*y-e*t>=0
where x and y are the two variables while e and t are two constants whose values has to vary in a range: i am trying to see the effect of e and t on the system represented by x and y.
basically i would like to obtain on the same graph different curves in x and y for a fixed number of combinations of e and t.
my code so far is:
n= 21;
x = linspace(-100, 100, n);
y = linspace(-100, 100, n);
[X, Y] = meshgrid(x, y);
a = 50;
b = 5;
e = linspace(-a, a, b);
t = linspace(-a, a, b);
Z = zeros(n, n);
for k = 1:b
for s = 1:b
b = X + Y + e(k) + t(s);
d = X.*Y – e(k).*t(s);
for i= 1:n
for j= 1:n
if b(i,j) >= 0
Z(i,j) = d(i,j);
else
Z(i,j) = -1;
end
end
v = [0, 0];
contour(X, Y, Z, v, ‘LineWidth’, 1.5)
grid on
hold on
end
end
end
could anybody please give me any suggestions on how to improve it, as the result so far is not what i expect.
thank you very much system of equations, plotting, iteration MATLAB Answers — New Questions

​

Hello community.
I’d like to have your support to find a soluion.
I have several ‘.dat’ files, I’m usinng mdfimport to export the variables I need and then save them into ‘.mat’ format.
my code:
clear all;
clc;
[FileName,PathName] = uigetfile(‘*.dat’,’Select the .dat-file(s)’,’MultiSelect’, ‘on’);

if class(FileName) == char(‘cell’);
FileName = FileName’;
end
if class(FileName)==char(‘char’);
FileName = {FileName};
end
%========================================================================%
V = {
[‘EnvT_t’]
[‘CtT_flgHeal’]
[‘CtT_flgEna’]
[‘Epm_nEng’]
[‘CTM_Delta’]
[‘CTM_Flag’]
[‘CTM_Sum’]
};
V=V’;
for k=1:length(FileName)
%———————————————————————-
progress = [‘Working on file ‘ int2str(k) ‘ of ‘ int2str(length(FileName)) ‘…’];
disp(progress);
disp(FileName(k));
LoadPath = char(strcat(PathName, FileName(k)));
mdfimport(LoadPath,[],V, ‘resample_1’);
save([‘@’ num2str(k) ‘.mat’])
end
let’s say I have below data:
Carr1.dat
Carr2.dat
Carr3.dat
Carr4.dat
my code will go trhoug each .dat file, will extract defined variables and then it will save it as follows:
@1.mat
@2.mat
@3.mat
@4.mat
how can I use save command to keep original file name? I’m looking to get this:
Carr1.mat
Carr2.mat
Carr3.mat
Carr4.mat
I’ve tryied different things but always get an error.

as always your feedback will be highly appreciatedHello community.
I’d like to have your support to find a soluion.
I have several ‘.dat’ files, I’m usinng mdfimport to export the variables I need and then save them into ‘.mat’ format.
my code:
clear all;
clc;
[FileName,PathName] = uigetfile(‘*.dat’,’Select the .dat-file(s)’,’MultiSelect’, ‘on’);

if class(FileName) == char(‘cell’);
FileName = FileName’;
end
if class(FileName)==char(‘char’);
FileName = {FileName};
end
%========================================================================%
V = {
[‘EnvT_t’]
[‘CtT_flgHeal’]
[‘CtT_flgEna’]
[‘Epm_nEng’]
[‘CTM_Delta’]
[‘CTM_Flag’]
[‘CTM_Sum’]
};
V=V’;
for k=1:length(FileName)
%———————————————————————-
progress = [‘Working on file ‘ int2str(k) ‘ of ‘ int2str(length(FileName)) ‘…’];
disp(progress);
disp(FileName(k));
LoadPath = char(strcat(PathName, FileName(k)));
mdfimport(LoadPath,[],V, ‘resample_1’);
save([‘@’ num2str(k) ‘.mat’])
end
let’s say I have below data:
Carr1.dat
Carr2.dat
Carr3.dat
Carr4.dat
my code will go trhoug each .dat file, will extract defined variables and then it will save it as follows:
@1.mat
@2.mat
@3.mat
@4.mat
how can I use save command to keep original file name? I’m looking to get this:
Carr1.mat
Carr2.mat
Carr3.mat
Carr4.mat
I’ve tryied different things but always get an error.

as always your feedback will be highly appreciated Hello community.
I’d like to have your support to find a soluion.
I have several ‘.dat’ files, I’m usinng mdfimport to export the variables I need and then save them into ‘.mat’ format.
my code:
clear all;
clc;
[FileName,PathName] = uigetfile(‘*.dat’,’Select the .dat-file(s)’,’MultiSelect’, ‘on’);

if class(FileName) == char(‘cell’);
FileName = FileName’;
end
if class(FileName)==char(‘char’);
FileName = {FileName};
end
%========================================================================%
V = {
[‘EnvT_t’]
[‘CtT_flgHeal’]
[‘CtT_flgEna’]
[‘Epm_nEng’]
[‘CTM_Delta’]
[‘CTM_Flag’]
[‘CTM_Sum’]
};
V=V’;
for k=1:length(FileName)
%———————————————————————-
progress = [‘Working on file ‘ int2str(k) ‘ of ‘ int2str(length(FileName)) ‘…’];
disp(progress);
disp(FileName(k));
LoadPath = char(strcat(PathName, FileName(k)));
mdfimport(LoadPath,[],V, ‘resample_1’);
save([‘@’ num2str(k) ‘.mat’])
end
let’s say I have below data:
Carr1.dat
Carr2.dat
Carr3.dat
Carr4.dat
my code will go trhoug each .dat file, will extract defined variables and then it will save it as follows:
@1.mat
@2.mat
@3.mat
@4.mat
how can I use save command to keep original file name? I’m looking to get this:
Carr1.mat
Carr2.mat
Carr3.mat
Carr4.mat
I’ve tryied different things but always get an error.

as always your feedback will be highly appreciated matlab, data import, save MATLAB Answers — New Questions

​

Hello everyone,
I have created my own neural network with matlab script (weights, bias, input, hidden and output layer) and I trained it until I got good results. but I don’t know how to assemble this script network into block simulink to use it in my simulation,
NOTE: I know the function gensim but it seems that it is used for matlab ANNs created with nntool, not for the manually created network.Hello everyone,
I have created my own neural network with matlab script (weights, bias, input, hidden and output layer) and I trained it until I got good results. but I don’t know how to assemble this script network into block simulink to use it in my simulation,
NOTE: I know the function gensim but it seems that it is used for matlab ANNs created with nntool, not for the manually created network. Hello everyone,
I have created my own neural network with matlab script (weights, bias, input, hidden and output layer) and I trained it until I got good results. but I don’t know how to assemble this script network into block simulink to use it in my simulation,
NOTE: I know the function gensim but it seems that it is used for matlab ANNs created with nntool, not for the manually created network. gensim / neural netwok / simulink MATLAB Answers — New Questions

​

I have input data X and output data Y.
I am training a LSTM network using:
net = trainNetwork(X(1:500), Y(1:500), layers, options);
This trains and initialize the network
However is there a way to initialize the network with for example X(1:600) and Y(1:600), not by retraining but by using the previous trained network ansd start any new predictions from that point on (601 and up)?I have input data X and output data Y.
I am training a LSTM network using:
net = trainNetwork(X(1:500), Y(1:500), layers, options);
This trains and initialize the network
However is there a way to initialize the network with for example X(1:600) and Y(1:600), not by retraining but by using the previous trained network ansd start any new predictions from that point on (601 and up)? I have input data X and output data Y.
I am training a LSTM network using:
net = trainNetwork(X(1:500), Y(1:500), layers, options);
This trains and initialize the network
However is there a way to initialize the network with for example X(1:600) and Y(1:600), not by retraining but by using the previous trained network ansd start any new predictions from that point on (601 and up)? lstm initiate deep learning MATLAB Answers — New Questions

​