Answered
Heatmap doesn't show the values
Let's check that you're using the heatmap function included in MATLAB and not a different heatmap.m that you've written yourself...

1 year ago | 2

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Answered
Some indices in indexed images made with cmunique are 0, what does that really mean? Isn't is a bug? I cannot index a colormap with index=0. Documentation is contradictory.
0 is a nonnegative integer value. isZeroNegative = 0 < 0 % false isZeroInteger = 0 == round(0) % true If you're using Imfig_i...

1 year ago | 0

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assign the fields of a structure correctly
Is d1 a struct array whose fields you need to rearrange? d1 = dir(which('bench.m')) If so you can use orderfields. I'm going t...

1 year ago | 0

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Differenece between "MATLAB for the MathWorks Certified MATLAB Associate Exam" and "MATLAB Fundamentals"
If you click "Learn More" in the "This course will be discontinued" banner on that course, it suggests the "Build MATLAB Profici...

1 year ago | 0

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error in symbolic convolution using integral and isAlways
Are you trying to tell MATLAB that % lam_f > 0 & u_f > 0 & sigma > 0 or are you trying to ask MATLAB if those three conditions ...

1 year ago | 0

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How to stop unwanted rows being added when constructing a matrix in a for loop
Since you're creating matrices with diagonal bands, consider using the diag or spdiags functions. n = 7; mainDiagonal = diag(6...

1 year ago | 0

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Individual User License usage conditions
Please contact Customer Service directly using this link or contact the Sales department directly using this link for help with ...

1 year ago | 0

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Issues using 'readtable' (MATLAB 2024a)
Let's check that you haven't accidentally defined a length.m function that does not behave the same way as the one included in M...

1 year ago | 0

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Problems with query points
According to the information you provided when you asked the question, you're using release R2023b. Looking at the documentation...

1 year ago | 0

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Generate mlint warning when variable is not unused
Is it possible to generate a warning when a variable is not used. More exactly, I would like to have the following behaviour: a...

1 year ago | 1

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Reading columns from a poorly-formatted text file
I would experiment with the settings controllable using the Import Tool to try to import the data. You could try running Import ...

1 year ago | 0

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How can I fix this error? 'Error: File: RSM_yeni.m Line: 84 Column: 19 Invalid array indexing.'
Looking at this line in your code (commenting it out so I can run code later in this answer) %{ constraint = @(x) fun(x)(1) - ...

1 year ago | 0

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linprog send wrong output
Your objective is written mathematically as "max 350 x1 +3 x2 +3.5 x3 +3.5x4" but the c vector you've defined is "c=[-300 -300 -...

1 year ago | 1

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Answered
Linkdata not refreshing graph
As written, this is going to recreate the figure and the plots each time through the while loop. Do you want to move those ahead...

1 year ago | 0

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Answered
MATLAB crashes on macOS Sonoma when clearing a figure.
I looked for a Bug Report that seemed relevant. None strike me as obviously related to this crash from the information you provi...

1 year ago | 0

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While cycle with conditions never ending
while (Dice1&&Dice2)~=6 This line of code doesn't do what you think it does. (Dice1 && Dice2) is either true (if both Dice1 an...

1 year ago | 0

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Solution for using rowfun but with a function handle ?
I want to address the points in your question slightly out of order. rowfun doesn't work with function handle, and arrayfun als...

1 year ago | 0

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Answered
Prevent mlint warning for onCleanup like return value
So I wrote a cleanup function which accepts parameters, so you can write cleandir = onCleanup_lazy( @(x) cd( x ), pwd ); B...

1 year ago | 0

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Answered
Solve differential equation for a sequence of k values
The ballode example included in MATLAB does something like this, though instead of dividing the interval that the ball is in mot...

1 year ago | 0

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How to apply NonNegativity constraint in ODE solver when defining ode as a structure
The relevant property of the ode object to specify that some of the variables must be non-negative is NonNegativeVariables. Afte...

1 year ago | 0

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Unable to recognise function from called script
Local functions in a script are only directly callable from within that script file. You could call them indirectly by calling t...

1 year ago | 0

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Faster alternate to all() function
Are you sure the longest time is spent in all? Reducing the size of the varname variable and the number of iterations a bit (so ...

1 year ago | 1

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Error using horzcat Requested 36x28689400 (7.7GB) array exceeds
That suggests to me that your system of ODEs is stiff and so ode45 requires a lot of time steps. Try a stiffer solver like ode23...

1 year ago | 1

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hi i started the matlab onramp course and im stuck on this further practice question i wld appreciate if anyone cld help me or even give an hint
As Image Analyst stated, it's an informational message not a question. Its intent is to let you know that the indices you use to...

1 year ago | 0

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License installation key for 2022A
If you're trying to use your company or educational institution's license, ask whoever maintains the organization's software lic...

1 year ago | 0

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MATLAB 2024a readtable error
Please attempt to reproduce this failure on your machine. If you can, immediately (before running any other command that could t...

1 year ago | 1

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Is there a command to copy output of fprintf (sent to the matlab terminal) to windows clipboard?
Use sprintf instead of fprintf and pass the output from sprintf into the clipboard function as the second input. x1 = sprintf('...

1 year ago | 1

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Answered
Can anyone help me for knowing the options of genetic algorithm?
Since you've said you're a beginner with MATLAB (and presumably Global Optimization Toolbox), I recommend starting off with the ...

1 year ago | 0

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=polyfit function give error in matlab app designer app
Can you show us exactly how x and y are defined in your App Designer code? If you're retrieving them from a property of an edit ...

1 year ago | 0

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Is there more than one way to make a class abstract?
As stated on this documentation page, there are several ways to make a class abstract. "A class is abstract when it declares: ...

1 year ago | 0