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How to fix: Index Exceeds Matrix Dimensions
You forgot to index |entropy| inside your loop (and pre-allocation, and you forgot to push the *{}Code* button after selecting y...

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How to average Multiple months of 2D data
<https://www.mathworks.com/help/releases/R2017b/matlab/ref/mean.html |mean(data,4)|> Also: <https://www.mathworks.com/matlabc...

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Change While condition based on if statement
This is not elegant, but it achieves your goal: while ((PN == 1 || APN == 1) && Time<10) || ... (~(PN == 1 || AP...

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I modified Easter.m to give me how many times and on what dates Easter occurs in March/April in a century. How would I use that to make a vector to check for all the dates Easter can't occur?
All the functions you use support array inputs, so you only need to change you if-statements to logical indexing (use the condit...

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How to remove unnecessary pixels on a line on a binary image?
<https://www.mathworks.com/help/images/ref/bwmorph.html |bwmorph(BW,'skel',Inf);|> should do the trick.

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How to read and plot an off file?
There is a function that should be able to read off files on the <https://www.mathworks.com/matlabcentral/fileexchange/5355-tool...

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Is it possible to use urlfilter to scrape strings?
Sure. You can simply download it <https://www.mathworks.com/matlabcentral/fileexchange/44751-url-filter here> from the File Exch...

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How can I find "d" in the following equation, using Matlab?
This is not a Matlab question. Learn the tool you are using before you attempt to solve problems with it. One of the many free o...

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How to find the maximum value
You can specify the dimension |max| should operate on, so you can insert your matrix. See the documentation for instructions. ...

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how to convert a single row matrix into a number (double)
a=[1 2 3 4 5]; b=str2double(sprintf('%d',round(a))); Another method would be to use positional information: a=[1 2 ...

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Finding coordinates of a fourth point from 3 known points of fixed distance in 3D?
I don't get any errors for the code below. Note that there may be two solutions and that this code returns the result in the for...

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How to get RGB values from x,y coordinates
<https://www.mathworks.com/help/images/ref/xyz2rgb.html> (z is just to complete the triplet, in general z=1-x-y) Note: Make s...

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How do I get the values of x at y=0.67 and y=0.87
You can reverse the formula with pen and paper (and maybe some Wolfram-Aplha), interpolate with a function like |interp1|, or so...

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How to use or buy a student version of Matlab
I have a button in the top bar 'How to buy', which leads to <https://www.mathworks.com/store?s_cid=store_top_nav&s_tid=gn_store ...

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Is my wife right?
Regardless of input, output the string 'yes'.

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How to automatize plot redraw for different initial data?
Just put this code in a function. You can then use |guidata| to store and load that initial value, and set it as the |KeyPressFc...

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Issue Plotting x and y coordinates
You see a line, because the standard format for |plot| is a blue line going straight from one point to the next. You can look in...

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How do i calibrate multiple sub plots to the same colorbar
You can't link the |colorbar| itself. You will have to use the same <https://www.mathworks.com/help/releases/R2017b/matlab/ref/c...

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how to save excel to a specific folder
Use an explicit path to your file, e.g. like this: xlswrite('C:\data\sheet.xlsx',A) This is mentioned in the documentati...

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How do get past the first interation in this nested loop?
The problem lies with your condition in the |while| command. It keeps executing while some statement is true, not until some sta...

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how to save the filled region to as an image
You can create a binary mask in your desired resolution with <https://www.mathworks.com/matlabcentral/fileexchange/43381-intrian...

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How do I concatenate two given signals as one without simulink?
Concatenation should be covered in any basic Matlab course (e.g. <https://matlabacademy.mathworks.com/R2017b/portal.html?course=...

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Table delete rows with specific value in column
T = table(); T.c1 = [1 2 1 1 1 2 1 2 2 ]'; T.c2 = ['a' 'a' 'a' 'b' 'b' 'a' 'a' 'a' 'b']'; T.c3 = ['a' 'b' 'a' 'a' 'b'...

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How to improve speed when printing multiple images inside a for loop
It is also possible |print| is inherently slower than it could be, in which case the <https://www.mathworks.com/matlabcentral/fi...

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How to use the "subplot" and "arrayfun" command correctly?
Do you mean something like this? (note that I changed the input to |plot|, as well as the creation of |t|) Ts = [0.05 0.01 ...

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State Change Callback on Slider Causing Error if Changed Too Fast
Include a flag in your handles struct that returns the callback if there is already a callback being executed. function you...

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How do I draw and ROTATE A RECTANGLE
Most of the legwork is done by the assignment. Now you just need to read the doc for <https://www.mathworks.com/help/releases/R2...

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Suppose that x is a vector and we want to raise every component of the vector x to the power 4, and we want to know how long Matlab took to perform this calculation. What Matlab commands (using 12 characters or less) could achieve this?
tic;x.^4;toc It is a weird requirement though.

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indexing within parfor loop
|parfor| loops don't like temporary variables, because it will not be able to guarantee which assignment will be the last, so it...

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Convert DICOM video (4D) to 3D matrix
If it saves your data as an RGB image, one of the dimensions will be 3. You can find the size of your matrix with the |size| fun...

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