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

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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

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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

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I’m trying to update any given table with a new header names imported from a .MAT file. I’m not sure how to approach this. Given the number of columns that the data file has, I want it to access a specific MAT file with new header names so that I can plot the preferred data. I don’t know how to create a mat file within a script so it can save the all the headers names to it as VariableNames and not values.I’m trying to update any given table with a new header names imported from a .MAT file. I’m not sure how to approach this. Given the number of columns that the data file has, I want it to access a specific MAT file with new header names so that I can plot the preferred data. I don’t know how to create a mat file within a script so it can save the all the headers names to it as VariableNames and not values. I’m trying to update any given table with a new header names imported from a .MAT file. I’m not sure how to approach this. Given the number of columns that the data file has, I want it to access a specific MAT file with new header names so that I can plot the preferred data. I don’t know how to create a mat file within a script so it can save the all the headers names to it as VariableNames and not values. matfile, matlab MATLAB Answers — New Questions

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I transform RGB images to indexed images with cmunique. Some of the indices in the indexed image are 0. It is not mentioned in the help for cmunique, but there is a contradictory statement in the help for rgb2ind, bold in the abbreviated citation below:
"[X,map] = rgb2ind(RGB,n) : Indexed image, returned as an m-by-n matrix X of nonnegative integers. If the length of map is less than or equal to 256, then the output image is of class uint8. Otherwise, the output image is of class uint16. n must be less than or equal to 65,536.
The value 0 in the output array X corresponds to the first color in the colormap."

In my case, the length of smallest color map is of the order of ~1500, so uint16 indices are expected. What do I do with elements of X that are 0 (zero), is there a way to prevent this happening?
Here is my relevant code:
% code snippet
Afull=imread(‘myfigure.png’); % myfigure.png is a color image
rectf=[133 56 521 521];
[fig_xrefout,fig_yrefout,Imfig,rectfig] = imcrop(Afull,rectf);
[Imfig_indexed,fig_map] =cmunique(Imfig);
dum=find(Imfig_indexed<=0);
~isempty(dum) % is 1!!!I transform RGB images to indexed images with cmunique. Some of the indices in the indexed image are 0. It is not mentioned in the help for cmunique, but there is a contradictory statement in the help for rgb2ind, bold in the abbreviated citation below:
"[X,map] = rgb2ind(RGB,n) : Indexed image, returned as an m-by-n matrix X of nonnegative integers. If the length of map is less than or equal to 256, then the output image is of class uint8. Otherwise, the output image is of class uint16. n must be less than or equal to 65,536.
The value 0 in the output array X corresponds to the first color in the colormap."

In my case, the length of smallest color map is of the order of ~1500, so uint16 indices are expected. What do I do with elements of X that are 0 (zero), is there a way to prevent this happening?
Here is my relevant code:
% code snippet
Afull=imread(‘myfigure.png’); % myfigure.png is a color image
rectf=[133 56 521 521];
[fig_xrefout,fig_yrefout,Imfig,rectfig] = imcrop(Afull,rectf);
[Imfig_indexed,fig_map] =cmunique(Imfig);
dum=find(Imfig_indexed<=0);
~isempty(dum) % is 1!!! I transform RGB images to indexed images with cmunique. Some of the indices in the indexed image are 0. It is not mentioned in the help for cmunique, but there is a contradictory statement in the help for rgb2ind, bold in the abbreviated citation below:
"[X,map] = rgb2ind(RGB,n) : Indexed image, returned as an m-by-n matrix X of nonnegative integers. If the length of map is less than or equal to 256, then the output image is of class uint8. Otherwise, the output image is of class uint16. n must be less than or equal to 65,536.
The value 0 in the output array X corresponds to the first color in the colormap."

In my case, the length of smallest color map is of the order of ~1500, so uint16 indices are expected. What do I do with elements of X that are 0 (zero), is there a way to prevent this happening?
Here is my relevant code:
% code snippet
Afull=imread(‘myfigure.png’); % myfigure.png is a color image
rectf=[133 56 521 521];
[fig_xrefout,fig_yrefout,Imfig,rectfig] = imcrop(Afull,rectf);
[Imfig_indexed,fig_map] =cmunique(Imfig);
dum=find(Imfig_indexed<=0);
~isempty(dum) % is 1!!! cmunique, value 0, indexed image MATLAB Answers — New Questions

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I have tried to get prcc sensitve analysis graph, but unfortunately i got an error.I request you please help to overcome the error.
CODE:
% Define parameter ranges
paramRanges = struct(‘beta’, [0.1, 0.5], ‘sigma’, [0.1, 0.3], ‘gamma’, [0.1, 0.4]);

% Number of samples
nSamples = 100;

% Number of parameters
paramNames = fieldnames(paramRanges);
nParams = numel(paramNames);

% Generate LHS samples
lhsSamples = lhsdesign(nSamples, nParams);

% Scale samples to parameter ranges
scaledSamples = zeros(nSamples, nParams);

for i = 1:nParams
low = paramRanges.(paramNames{i})(1);
high = paramRanges.(paramNames{i})(2);
scaledSamples(:, i) = low + lhsSamples(:, i) * (high – low);
end
% Define SEIR model parameters and calculate R0

% Run simulations to compute R0 for each parameter set
R0Values = zeros(nSamples, 1);
for i = 1:nSamples
R0Values(i) = calculateR0(scaledSamples(i, :));
end
% Calculate PRCC
function prcc = calculatePRCC(outputs, samples)
nParams = size(samples, 2);
prcc = zeros(nParams, 1);

for i = 1:nParams
% Rank data
ranksSamples = tiedrank(samples(:, i));
ranksOutputs = tiedrank(outputs);

% Compute correlation
prcc(i) = corr(ranksSamples, ranksOutputs);
end
end

% Perform PRCC analysis for R0 values
prccValues = calculatePRCC(R0Values, scaledSamples);
function R0 = calculateR0(params)
beta = params(1);
sigma = params(2);
gamma = params(3);

% Basic reproduction number for SEIR model
R0 = beta / gamma;
end
% Display results
for i = 1:nParams
fprintf(‘PRCC for %s: %.4fn’, paramNames{i}, prccValues(i));
end
ERROR:
Function definitions in a script must appear at the end of the file.
Move all statements after the "calculateR0" function definition to before the first local function definition.I have tried to get prcc sensitve analysis graph, but unfortunately i got an error.I request you please help to overcome the error.
CODE:
% Define parameter ranges
paramRanges = struct(‘beta’, [0.1, 0.5], ‘sigma’, [0.1, 0.3], ‘gamma’, [0.1, 0.4]);

% Number of samples
nSamples = 100;

% Number of parameters
paramNames = fieldnames(paramRanges);
nParams = numel(paramNames);

% Generate LHS samples
lhsSamples = lhsdesign(nSamples, nParams);

% Scale samples to parameter ranges
scaledSamples = zeros(nSamples, nParams);

for i = 1:nParams
low = paramRanges.(paramNames{i})(1);
high = paramRanges.(paramNames{i})(2);
scaledSamples(:, i) = low + lhsSamples(:, i) * (high – low);
end
% Define SEIR model parameters and calculate R0

% Run simulations to compute R0 for each parameter set
R0Values = zeros(nSamples, 1);
for i = 1:nSamples
R0Values(i) = calculateR0(scaledSamples(i, :));
end
% Calculate PRCC
function prcc = calculatePRCC(outputs, samples)
nParams = size(samples, 2);
prcc = zeros(nParams, 1);

for i = 1:nParams
% Rank data
ranksSamples = tiedrank(samples(:, i));
ranksOutputs = tiedrank(outputs);

% Compute correlation
prcc(i) = corr(ranksSamples, ranksOutputs);
end
end

% Perform PRCC analysis for R0 values
prccValues = calculatePRCC(R0Values, scaledSamples);
function R0 = calculateR0(params)
beta = params(1);
sigma = params(2);
gamma = params(3);

% Basic reproduction number for SEIR model
R0 = beta / gamma;
end
% Display results
for i = 1:nParams
fprintf(‘PRCC for %s: %.4fn’, paramNames{i}, prccValues(i));
end
ERROR:
Function definitions in a script must appear at the end of the file.
Move all statements after the "calculateR0" function definition to before the first local function definition. I have tried to get prcc sensitve analysis graph, but unfortunately i got an error.I request you please help to overcome the error.
CODE:
% Define parameter ranges
paramRanges = struct(‘beta’, [0.1, 0.5], ‘sigma’, [0.1, 0.3], ‘gamma’, [0.1, 0.4]);

% Number of samples
nSamples = 100;

% Number of parameters
paramNames = fieldnames(paramRanges);
nParams = numel(paramNames);

% Generate LHS samples
lhsSamples = lhsdesign(nSamples, nParams);

% Scale samples to parameter ranges
scaledSamples = zeros(nSamples, nParams);

for i = 1:nParams
low = paramRanges.(paramNames{i})(1);
high = paramRanges.(paramNames{i})(2);
scaledSamples(:, i) = low + lhsSamples(:, i) * (high – low);
end
% Define SEIR model parameters and calculate R0

% Run simulations to compute R0 for each parameter set
R0Values = zeros(nSamples, 1);
for i = 1:nSamples
R0Values(i) = calculateR0(scaledSamples(i, :));
end
% Calculate PRCC
function prcc = calculatePRCC(outputs, samples)
nParams = size(samples, 2);
prcc = zeros(nParams, 1);

for i = 1:nParams
% Rank data
ranksSamples = tiedrank(samples(:, i));
ranksOutputs = tiedrank(outputs);

% Compute correlation
prcc(i) = corr(ranksSamples, ranksOutputs);
end
end

% Perform PRCC analysis for R0 values
prccValues = calculatePRCC(R0Values, scaledSamples);
function R0 = calculateR0(params)
beta = params(1);
sigma = params(2);
gamma = params(3);

% Basic reproduction number for SEIR model
R0 = beta / gamma;
end
% Display results
for i = 1:nParams
fprintf(‘PRCC for %s: %.4fn’, paramNames{i}, prccValues(i));
end
ERROR:
Function definitions in a script must appear at the end of the file.
Move all statements after the "calculateR0" function definition to before the first local function definition. prcc, sensitive analysis MATLAB Answers — New Questions

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