I am currently using MATLAB 2022a.
I have a for loop (let’s call this for loop LOOP_A) doing some calculation and each calculation is depending on some values from the previous loop.
Without editting too much of the content of LOOP_A, I want to log those variables at the end of each loop.
I’m thinking about having another for loop (let’s call this one LOOP_B) that log the data in the workspace for each loop of LOOP_A till the entire execution of the LOOP_A is finished.
Here is what I would like to have:
% Repeat the following till all loops are finished:
% LOOP_A:
% Pause after one iteration
% Send data from workspace to LOOP_B
% Wait till LOOP_B send "good to go" signal if not finished

% LOOP_B:
% Receive data from LOOP_A
% Store the data
% Send "good to go" signal to LOOP_A

% LOOP_A:
% Continue running for one iteration
% Send data from workspace to LOOP_B
% Wait till LOOP_B send "good to go" signal if not finished
% …
Is there a way I can do that?I am currently using MATLAB 2022a.
I have a for loop (let’s call this for loop LOOP_A) doing some calculation and each calculation is depending on some values from the previous loop.
Without editting too much of the content of LOOP_A, I want to log those variables at the end of each loop.
I’m thinking about having another for loop (let’s call this one LOOP_B) that log the data in the workspace for each loop of LOOP_A till the entire execution of the LOOP_A is finished.
Here is what I would like to have:
% Repeat the following till all loops are finished:
% LOOP_A:
% Pause after one iteration
% Send data from workspace to LOOP_B
% Wait till LOOP_B send "good to go" signal if not finished

% LOOP_B:
% Receive data from LOOP_A
% Store the data
% Send "good to go" signal to LOOP_A

% LOOP_A:
% Continue running for one iteration
% Send data from workspace to LOOP_B
% Wait till LOOP_B send "good to go" signal if not finished
% …
Is there a way I can do that? I am currently using MATLAB 2022a.
I have a for loop (let’s call this for loop LOOP_A) doing some calculation and each calculation is depending on some values from the previous loop.
Without editting too much of the content of LOOP_A, I want to log those variables at the end of each loop.
I’m thinking about having another for loop (let’s call this one LOOP_B) that log the data in the workspace for each loop of LOOP_A till the entire execution of the LOOP_A is finished.
Here is what I would like to have:
% Repeat the following till all loops are finished:
% LOOP_A:
% Pause after one iteration
% Send data from workspace to LOOP_B
% Wait till LOOP_B send "good to go" signal if not finished

% LOOP_B:
% Receive data from LOOP_A
% Store the data
% Send "good to go" signal to LOOP_A

% LOOP_A:
% Continue running for one iteration
% Send data from workspace to LOOP_B
% Wait till LOOP_B send "good to go" signal if not finished
% …
Is there a way I can do that? matlab MATLAB Answers — New Questions

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result = [];
for num = 1500:2700
if mod(num, 7) == 0 && mod(num, 5) == 0
result = [result, num];
end
end
disp(‘Numbers between 1500 and 2700 that are divisible by 7 and multiples of 5:’);
disp(result);result = [];
for num = 1500:2700
if mod(num, 7) == 0 && mod(num, 5) == 0
result = [result, num];
end
end
disp(‘Numbers between 1500 and 2700 that are divisible by 7 and multiples of 5:’);
disp(result); result = [];
for num = 1500:2700
if mod(num, 7) == 0 && mod(num, 5) == 0
result = [result, num];
end
end
disp(‘Numbers between 1500 and 2700 that are divisible by 7 and multiples of 5:’);
disp(result); hw MATLAB Answers — New Questions

​

Hi,
I have 2 questions. 1 is about the com port and 2 is about the setting up the simulink via code.
So I found out that 2024A version has the function to list the Arduino using arduinolist – List available Arduino hardware – MATLAB (mathworks.com) this function.
However, I am currently unable to get 2024a but has 2023b version so I am looking for some suggestions how to make this list automatically so I can utilize. My start idea is to list the comport using the serialportlist("available") to obtain the comport that are connected which was successful but couldn’t find a way to obtain the information from the comport to detect what which Arduino is connected to which comport.
Can anyone give me some suggestions?

The second question is about how to connect the Simulink to these each Arduino.
I am able to open the Simulink using the open_system But couldn’t get each Simulink to connect to each Arduino. Is there a way to code so that the specific Simulink can connect to a specific Arduino. Any ideas please?

Thanks!Hi,
I have 2 questions. 1 is about the com port and 2 is about the setting up the simulink via code.
So I found out that 2024A version has the function to list the Arduino using arduinolist – List available Arduino hardware – MATLAB (mathworks.com) this function.
However, I am currently unable to get 2024a but has 2023b version so I am looking for some suggestions how to make this list automatically so I can utilize. My start idea is to list the comport using the serialportlist("available") to obtain the comport that are connected which was successful but couldn’t find a way to obtain the information from the comport to detect what which Arduino is connected to which comport.
Can anyone give me some suggestions?

The second question is about how to connect the Simulink to these each Arduino.
I am able to open the Simulink using the open_system But couldn’t get each Simulink to connect to each Arduino. Is there a way to code so that the specific Simulink can connect to a specific Arduino. Any ideas please?

Thanks! Hi,
I have 2 questions. 1 is about the com port and 2 is about the setting up the simulink via code.
So I found out that 2024A version has the function to list the Arduino using arduinolist – List available Arduino hardware – MATLAB (mathworks.com) this function.
However, I am currently unable to get 2024a but has 2023b version so I am looking for some suggestions how to make this list automatically so I can utilize. My start idea is to list the comport using the serialportlist("available") to obtain the comport that are connected which was successful but couldn’t find a way to obtain the information from the comport to detect what which Arduino is connected to which comport.
Can anyone give me some suggestions?

The second question is about how to connect the Simulink to these each Arduino.
I am able to open the Simulink using the open_system But couldn’t get each Simulink to connect to each Arduino. Is there a way to code so that the specific Simulink can connect to a specific Arduino. Any ideas please?

Thanks! arduino, simulink, appdesigner MATLAB Answers — New Questions

​

How can I programmatically set the modeling option parameter for a Simscape Battery block in MATLAB to "Instrumented | Show thermal port" to display both the SOC and thermal ports?
I tried using get_param to retrieve the parameters of the battery block, but I couldn’t find any related to the modeling options (SOC or thermal ports). Is there a way to programmatically enable these ports or set these parameters through a MATLAB script?How can I programmatically set the modeling option parameter for a Simscape Battery block in MATLAB to "Instrumented | Show thermal port" to display both the SOC and thermal ports?
I tried using get_param to retrieve the parameters of the battery block, but I couldn’t find any related to the modeling options (SOC or thermal ports). Is there a way to programmatically enable these ports or set these parameters through a MATLAB script? How can I programmatically set the modeling option parameter for a Simscape Battery block in MATLAB to "Instrumented | Show thermal port" to display both the SOC and thermal ports?
I tried using get_param to retrieve the parameters of the battery block, but I couldn’t find any related to the modeling options (SOC or thermal ports). Is there a way to programmatically enable these ports or set these parameters through a MATLAB script? simulink, simscape, battery, modeling options, programmatic modeling MATLAB Answers — New Questions

​

Currently, I am working on an app that can successfully write 4 columns of data to a text file in a user-defined file location, at the push of a button. I am accomplishing this task using the following code:
% Button pushed function: ExporttotxtButton
function ExporttotxtButtonPushed(app, event)

[fn,pn] = uiputfile(‘.rdf’,’RoadProfile_bumpy_fl.rdf’,’RoadProfile_bumpy_fl.rdf’);

if isnumeric(fn) % user canceled
return % return early
end
% write the table to the user-specified file
writematrix(app.UITable.Data,fullfile(pn,fn),’Delimiter’,’tab’,’FileType’,’text’);
However, I have a very long string of text (about 47 lines of text…not included here to save space) that I would like to include as a header in the generated text file. The goal is to have the end result be a text file that already has the header populated with a standard 47 lines of text, and then write the matrix data below the header as I am already doing. I have tried using the following:
fprintf(fullfile(pn,fn),’%sn’,[‘long_string_of_text..’ …
‘creating new line each timen’…]
But, this doesn’t seem to work. Any help would be much appreciated. I can post the full text that I want to include in the header if that is necessary. Thank you.Currently, I am working on an app that can successfully write 4 columns of data to a text file in a user-defined file location, at the push of a button. I am accomplishing this task using the following code:
% Button pushed function: ExporttotxtButton
function ExporttotxtButtonPushed(app, event)

[fn,pn] = uiputfile(‘.rdf’,’RoadProfile_bumpy_fl.rdf’,’RoadProfile_bumpy_fl.rdf’);

if isnumeric(fn) % user canceled
return % return early
end
% write the table to the user-specified file
writematrix(app.UITable.Data,fullfile(pn,fn),’Delimiter’,’tab’,’FileType’,’text’);
However, I have a very long string of text (about 47 lines of text…not included here to save space) that I would like to include as a header in the generated text file. The goal is to have the end result be a text file that already has the header populated with a standard 47 lines of text, and then write the matrix data below the header as I am already doing. I have tried using the following:
fprintf(fullfile(pn,fn),’%sn’,[‘long_string_of_text..’ …
‘creating new line each timen’…]
But, this doesn’t seem to work. Any help would be much appreciated. I can post the full text that I want to include in the header if that is necessary. Thank you. Currently, I am working on an app that can successfully write 4 columns of data to a text file in a user-defined file location, at the push of a button. I am accomplishing this task using the following code:
% Button pushed function: ExporttotxtButton
function ExporttotxtButtonPushed(app, event)

[fn,pn] = uiputfile(‘.rdf’,’RoadProfile_bumpy_fl.rdf’,’RoadProfile_bumpy_fl.rdf’);

if isnumeric(fn) % user canceled
return % return early
end
% write the table to the user-specified file
writematrix(app.UITable.Data,fullfile(pn,fn),’Delimiter’,’tab’,’FileType’,’text’);
However, I have a very long string of text (about 47 lines of text…not included here to save space) that I would like to include as a header in the generated text file. The goal is to have the end result be a text file that already has the header populated with a standard 47 lines of text, and then write the matrix data below the header as I am already doing. I have tried using the following:
fprintf(fullfile(pn,fn),’%sn’,[‘long_string_of_text..’ …
‘creating new line each timen’…]
But, this doesn’t seem to work. Any help would be much appreciated. I can post the full text that I want to include in the header if that is necessary. Thank you. appdesigner MATLAB Answers — New Questions

​

received following errors – for seemingly straight forward command:
> net = trainnet(data1, class1, net_1, "crossentropy", options);

Error Number of observations in predictors (1) and targets (1071) must match.
Check that the data and network are consistent.
This is odd because both the training and validation data/class are matching size 1071 X 140 and 1071 X 1. Could you please advise. Similarly validation in options have compatiable digmensions. weird.received following errors – for seemingly straight forward command:
> net = trainnet(data1, class1, net_1, "crossentropy", options);

Error Number of observations in predictors (1) and targets (1071) must match.
Check that the data and network are consistent.
This is odd because both the training and validation data/class are matching size 1071 X 140 and 1071 X 1. Could you please advise. Similarly validation in options have compatiable digmensions. weird. received following errors – for seemingly straight forward command:
> net = trainnet(data1, class1, net_1, "crossentropy", options);

Error Number of observations in predictors (1) and targets (1071) must match.
Check that the data and network are consistent.
This is odd because both the training and validation data/class are matching size 1071 X 140 and 1071 X 1. Could you please advise. Similarly validation in options have compatiable digmensions. weird. trainnet, deep learning MATLAB Answers — New Questions

​

I´m doing a code to generate a system composer report with sequence diagrams, but when i run the code, i get the error: Unable to open file ‘C:UsersuserOneDriveDocumentsMATLABimage.png for writing. Check write permission. I checked that path and i do have writing permission, and i try running matlab as admin, but i get the same error. The tricky part is, if I run a simple code using the imwrite comand to save an image in that path (before running the report generator code i have), it works well and it writes an image there, but as soon as i run the repor generator code, i get the error, and if again, try to use the imwrite command (that previously worked) it throws the same error that said i don´t have write permission, but it had worked moments ago. Also, in the report generator code, in anypart of the code I specifed that i want to save the images in that specific path, matlab uses that path by default.

This is the report generator code:
import mlreportgen.report.*
import slreportgen.report.*
import slreportgen.finder.*
import mlreportgen.dom.*
import mlreportgen.utils.*
import systemcomposer.query.*
import systemcomposer.rptgen.finder.*

rpt = slreportgen.report.Report(‘OutputPath’, ‘FullArchitecture’, …
‘CompileModelBeforeReporting’, false);
model = systemcomposer.loadModel(modelFileName);
if isempty(model)
error(‘Model could not be loaded: %s’, modelFileName);
end
seqDiagrams = model.getInteractions;
if isempty(seqDiagrams)
warning(‘No sequence diagrams found in the model: %s’, modelFileName);
return; % Exit if there are no diagrams
end
seqChapter = Chapter("Title", "Sequence Diagrams");
Sect = Section("Title", model.Name);
add(seqChapter, Sect);
try
% Loop through each sequence diagram and add it to the report
for i = 1:length(seqDiagrams)
seqDiagram = seqDiagrams(i);
% Create a SequenceDiagram reporter for each diagram
seqReporter = systemcomposer.rptgen.report.SequenceDiagram("Name", …
seqDiagram.Name, "ModelName", model.Name);
seqSect = Section("Title", seqDiagram.Name);
add(seqSect, seqReporter);
add(Sect, seqSect);
end
% Add the chapter to the report
add(rpt, seqChapter);
catch ME
fprintf(‘Error encountered: %sn’, ME.message);
end
% Finally, close and view or save the report (depending on platform)
close(rpt);I´m doing a code to generate a system composer report with sequence diagrams, but when i run the code, i get the error: Unable to open file ‘C:UsersuserOneDriveDocumentsMATLABimage.png for writing. Check write permission. I checked that path and i do have writing permission, and i try running matlab as admin, but i get the same error. The tricky part is, if I run a simple code using the imwrite comand to save an image in that path (before running the report generator code i have), it works well and it writes an image there, but as soon as i run the repor generator code, i get the error, and if again, try to use the imwrite command (that previously worked) it throws the same error that said i don´t have write permission, but it had worked moments ago. Also, in the report generator code, in anypart of the code I specifed that i want to save the images in that specific path, matlab uses that path by default.

This is the report generator code:
import mlreportgen.report.*
import slreportgen.report.*
import slreportgen.finder.*
import mlreportgen.dom.*
import mlreportgen.utils.*
import systemcomposer.query.*
import systemcomposer.rptgen.finder.*

rpt = slreportgen.report.Report(‘OutputPath’, ‘FullArchitecture’, …
‘CompileModelBeforeReporting’, false);
model = systemcomposer.loadModel(modelFileName);
if isempty(model)
error(‘Model could not be loaded: %s’, modelFileName);
end
seqDiagrams = model.getInteractions;
if isempty(seqDiagrams)
warning(‘No sequence diagrams found in the model: %s’, modelFileName);
return; % Exit if there are no diagrams
end
seqChapter = Chapter("Title", "Sequence Diagrams");
Sect = Section("Title", model.Name);
add(seqChapter, Sect);
try
% Loop through each sequence diagram and add it to the report
for i = 1:length(seqDiagrams)
seqDiagram = seqDiagrams(i);
% Create a SequenceDiagram reporter for each diagram
seqReporter = systemcomposer.rptgen.report.SequenceDiagram("Name", …
seqDiagram.Name, "ModelName", model.Name);
seqSect = Section("Title", seqDiagram.Name);
add(seqSect, seqReporter);
add(Sect, seqSect);
end
% Add the chapter to the report
add(rpt, seqChapter);
catch ME
fprintf(‘Error encountered: %sn’, ME.message);
end
% Finally, close and view or save the report (depending on platform)
close(rpt); I´m doing a code to generate a system composer report with sequence diagrams, but when i run the code, i get the error: Unable to open file ‘C:UsersuserOneDriveDocumentsMATLABimage.png for writing. Check write permission. I checked that path and i do have writing permission, and i try running matlab as admin, but i get the same error. The tricky part is, if I run a simple code using the imwrite comand to save an image in that path (before running the report generator code i have), it works well and it writes an image there, but as soon as i run the repor generator code, i get the error, and if again, try to use the imwrite command (that previously worked) it throws the same error that said i don´t have write permission, but it had worked moments ago. Also, in the report generator code, in anypart of the code I specifed that i want to save the images in that specific path, matlab uses that path by default.

This is the report generator code:
import mlreportgen.report.*
import slreportgen.report.*
import slreportgen.finder.*
import mlreportgen.dom.*
import mlreportgen.utils.*
import systemcomposer.query.*
import systemcomposer.rptgen.finder.*

rpt = slreportgen.report.Report(‘OutputPath’, ‘FullArchitecture’, …
‘CompileModelBeforeReporting’, false);
model = systemcomposer.loadModel(modelFileName);
if isempty(model)
error(‘Model could not be loaded: %s’, modelFileName);
end
seqDiagrams = model.getInteractions;
if isempty(seqDiagrams)
warning(‘No sequence diagrams found in the model: %s’, modelFileName);
return; % Exit if there are no diagrams
end
seqChapter = Chapter("Title", "Sequence Diagrams");
Sect = Section("Title", model.Name);
add(seqChapter, Sect);
try
% Loop through each sequence diagram and add it to the report
for i = 1:length(seqDiagrams)
seqDiagram = seqDiagrams(i);
% Create a SequenceDiagram reporter for each diagram
seqReporter = systemcomposer.rptgen.report.SequenceDiagram("Name", …
seqDiagram.Name, "ModelName", model.Name);
seqSect = Section("Title", seqDiagram.Name);
add(seqSect, seqReporter);
add(Sect, seqSect);
end
% Add the chapter to the report
add(rpt, seqChapter);
catch ME
fprintf(‘Error encountered: %sn’, ME.message);
end
% Finally, close and view or save the report (depending on platform)
close(rpt); system composer, sequence diagram, reports MATLAB Answers — New Questions

​

Hey,
I have a very large model and initially I have given random names to signal labels. Now I have somewhat achieved what I wanted wth my model, and I wish to make some minor modifications such as changing the signal labels. I do not wish to do it manually.
I was trying to change the signal labels for signals coming out of bus selector. I am using the
find_system and set functions to do this task but not able to do so. Issue is that bus selector does not find the new signal name.
I am able to change the name manually without any issue.
How to change the signal labelsof bus selector using code?Hey,
I have a very large model and initially I have given random names to signal labels. Now I have somewhat achieved what I wanted wth my model, and I wish to make some minor modifications such as changing the signal labels. I do not wish to do it manually.
I was trying to change the signal labels for signals coming out of bus selector. I am using the
find_system and set functions to do this task but not able to do so. Issue is that bus selector does not find the new signal name.
I am able to change the name manually without any issue.
How to change the signal labelsof bus selector using code? Hey,
I have a very large model and initially I have given random names to signal labels. Now I have somewhat achieved what I wanted wth my model, and I wish to make some minor modifications such as changing the signal labels. I do not wish to do it manually.
I was trying to change the signal labels for signals coming out of bus selector. I am using the
find_system and set functions to do this task but not able to do so. Issue is that bus selector does not find the new signal name.
I am able to change the name manually without any issue.
How to change the signal labelsof bus selector using code? bus selector MATLAB Answers — New Questions

​

I’m trying to reproduce a bug/reduce it to something I can report, but so far it only happens when I call a particular 150-line function. I can put the offending code, up to and including the line that causes the error, in a new function and it runs fine, so I imagine there’s something going on behind the scenes with the other 140 lines. T̶h̶i̶s̶ ̶c̶o̶d̶e̶ ̶r̶u̶n̶s̶ ̶f̶i̶n̶e̶ ̶o̶n̶ ̶W̶i̶n̶d̶o̶w̶s̶.̶
If I pause inside the function and type
which gcf
I get: built-in (/Applications/MATLAB_R2024a.app/toolbox/matlab/graphics/gcf)
Which is correct. But when I call gcf immediately after, I get:
Unrecognized function or variable ‘gcf’.

Sorry I don’t have an example to upload. I’m just looking for troubleshooting ideas.I’m trying to reproduce a bug/reduce it to something I can report, but so far it only happens when I call a particular 150-line function. I can put the offending code, up to and including the line that causes the error, in a new function and it runs fine, so I imagine there’s something going on behind the scenes with the other 140 lines. T̶h̶i̶s̶ ̶c̶o̶d̶e̶ ̶r̶u̶n̶s̶ ̶f̶i̶n̶e̶ ̶o̶n̶ ̶W̶i̶n̶d̶o̶w̶s̶.̶
If I pause inside the function and type
which gcf
I get: built-in (/Applications/MATLAB_R2024a.app/toolbox/matlab/graphics/gcf)
Which is correct. But when I call gcf immediately after, I get:
Unrecognized function or variable ‘gcf’.

Sorry I don’t have an example to upload. I’m just looking for troubleshooting ideas. I’m trying to reproduce a bug/reduce it to something I can report, but so far it only happens when I call a particular 150-line function. I can put the offending code, up to and including the line that causes the error, in a new function and it runs fine, so I imagine there’s something going on behind the scenes with the other 140 lines. T̶h̶i̶s̶ ̶c̶o̶d̶e̶ ̶r̶u̶n̶s̶ ̶f̶i̶n̶e̶ ̶o̶n̶ ̶W̶i̶n̶d̶o̶w̶s̶.̶
If I pause inside the function and type
which gcf
I get: built-in (/Applications/MATLAB_R2024a.app/toolbox/matlab/graphics/gcf)
Which is correct. But when I call gcf immediately after, I get:
Unrecognized function or variable ‘gcf’.

Sorry I don’t have an example to upload. I’m just looking for troubleshooting ideas. figure MATLAB Answers — New Questions

​

I use a third party c library with my Simulnk model as Custom Code. I’d like to access a global variable exported in this library with a Data Store Read block from the Simulink model. However I don’t know how to tell the Data Store Memory block that it is an already existing variable. It always exports the definition no matter what, and also initializes the variable with de default values. How can it be achieved? Thanks!I use a third party c library with my Simulnk model as Custom Code. I’d like to access a global variable exported in this library with a Data Store Read block from the Simulink model. However I don’t know how to tell the Data Store Memory block that it is an already existing variable. It always exports the definition no matter what, and also initializes the variable with de default values. How can it be achieved? Thanks! I use a third party c library with my Simulnk model as Custom Code. I’d like to access a global variable exported in this library with a Data Store Read block from the Simulink model. However I don’t know how to tell the Data Store Memory block that it is an already existing variable. It always exports the definition no matter what, and also initializes the variable with de default values. How can it be achieved? Thanks! simulnink, data store memory, custom code MATLAB Answers — New Questions

​