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Hello, I keep getting an error about undefined unary operators. I don't understand this error and I don't know what else I am missing.
I would suggest splitting up K in smaller parts. Currently it is extremely easy to make a mistake, and it is about as hard to sp...

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function doesnt works well
varargin is typically used to capture optional input arguments: help varargin Since you don't use the optional/unnamed inputs,...

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coordinate data in the text command
You have two options that I'm aware of: Write a wrapper function that will split your vector as approriate. Use a comma separa...

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How to make dynamic variable names (A1, A2, A3, ..., ) with "for" loop?
Don't use numbered variables. Use cell arrays instead. I also changed your loops to use n instead of i and j (as they can be cof...

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Problem with Plot function.
You have added ',2' twice. If you remove those, it should be a valid syntax.

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how to use a 'loop' for certain counts
You were attempting to overwrite elements of your array. You were also trying to create numbered variables, instead of using ar...

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How to use genvarname variable after creation?
This is a terrible idea. You are forced to use eval every time. The only time you wouldn't need eval is if you are using it t...

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Problem to display output
You're trying to index b. So let's explore the values involved: %rest of your code for i = 1:200 b = trans_matrix^i; ...

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plotting discrete graph from 0 to 20
You should be using plot with only the markers then. plot(0:20,ones(21,1),'*')

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from python to matlab
You have three options. Re-implement the entire functionality in Matlab. There is no automatic conversion possible. Call you P...

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how to zoom file.mat
When you use load with an ouput argument, you will load the variables in that file to a struct. Based on your error message, I'm...

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How can I convert a char vector according to the readtable VariableNamingRule
Yes, there is: S='123 Character?Vector_With*Special Characters_'; N = matlab.lang.makeValidName(S) If you want to make sure...

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How would you find the missing dates. This code only gives one of the missing dates
doc ismember

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I want to find the average of the months in the graph, pls help
You should not store data in variable names, so DateMar is not a good name. It prevents you from extending this code easily to l...

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Windows script does not run under macOS Monterey
It looks like you are mixing \ and /, which might cause issues. In general you should use filesep or fullfile to create a path ...

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Minimize squared error function with fmincon
fmincon promises to minimize the function value if you provide it with a vector. So the solution is to have a wrapper function t...

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Color of legend does't change in the loop.
Each call to fplot will create a line object. So in your code you create 4 objects, but you provide only 2 legend entries. syms...

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Add row in a matrice
You did nothing wrong. You only forgot that using the semicolon (the ; symbol) will suppress the output of a function. That is ...

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Conversion of grayscale image into RGB and CIELAB color space
To convert a grayscale image to RGB you need a colormap. G=imread('https://www.mathworks.com/matlabcentral/answers/uploaded_fil...

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find number of zeros in an array
Get the RunLength function by Jan from the file exchange.

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Find the occurances of the 'nth' digit matlab
You hardcoded the fact that your first input must have 100k elements (without documenting this). You are also using str2num, whi...

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error using inlineeval (line13)
Why are you using an inline object instead of an anonymous function? Anyway, the reason is the ^^ in your function definition. ...

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how to create checkboxes in appdesigner based on number of specific files present in the folder?
You can create uicheckbox objects in a loop in your code, depending on a list of files. See the documentation here.

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How to extract elements from cell arrays and compute the mean of those elements?
By far the easiest way is to use a loop. SubB_M1power={rand(128,3),rand(128,3)}; for n=1:numel(SubB_M1power) SubB_M1power...

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Why won't fitpeaks work on my data?
I guess boldly: Your txt file contains both the magnitude and the wavelength. The plot function gave you a plot with two lines:...

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display table in command window without { }
If you really want to, you can. The formattedDisplayText function was introduced in R2021a. I read about this one in a Communit...

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How to generate two random where the distance between is within a range
If you need a uniform distribution you might need to randomly generate pairs of deltaX and deltaY until hypot(deltaX,deltaY) is ...

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plot a function of 2 variables inside a for loop
You are overwriting J and using j in your loop definition. You should define an array to hold the result. Then you can define...

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How to add colormap on an image?
In case you don't want to make a screenshot of your image with print, you can use ind2rgb: a=imread('moon.tif'); map=colormap(...

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How to define an objective function in the fmincon?
Your objective function should return a scalar. To borrow a term from machine learning: it is a cost function. One of the often...

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