Answered
Write data to text file
This is probably due to Matlab being column-based, instead of row-based. This may result in counterintuitive results if you ente...

7 years ago | 1

| accepted

Answered
Cell to matrix average
Something like this should work for you: %generate some example data data=cell(93,1); for n=1:93 data{n}=rand(45,147,19)...

7 years ago | 0

Answered
How do you use ls to change your directory in Matlab?
The homework is either badly designed, or is attempting to teach you why you shouldn't use it. You shouldn't change your curren...

7 years ago | 0

| accepted

Answered
Standard Deviation of 3D matrix with NaN elements
This syntax should work for most releases: sdev=std(m(:),'omitnan');

7 years ago | 0

Answered
Picking files according to file names
Use the dir function to generate a list of files, then parse the file names in a loop and continue to read the relevant files.

7 years ago | 0

| accepted

Answered
Finding consecutive data with non zero in array
I used the mfile version of Jan's FEX submission RunLength, because I can't get my compiler to work right now. With the runlegth...

7 years ago | 0

Answered
randomly divide vector into 2 parts.
I don't fully understand every step of your code, so I rewrote it: index_rating=rand(100000,5);%generate example data training...

7 years ago | 0

| accepted

Answered
imread not working for gif problem
It took some digging with the debugger, but with enough breakpoints I was able to track down the cause. Your calls are failing b...

7 years ago | 2

| accepted

Answered
write a range on the y-axis
You can modify the XTickLabels property to display any char array. figure(1),clf(1)%only use clf during debugging ax=axes; pl...

7 years ago | 0

| accepted

Answered
How can I run a Matlab script at the same time everyday?
It is probably easiest to use the options your OS provides and run a headless instance of Matlab. On Windows you can use the tas...

7 years ago | 0

Answered
Changing data from long form to short form
You can use the participant ID and trial ID as the indices and either use accumarray or sub2ind to fill the matrix with the valu...

7 years ago | 1

Answered
How to count the number of voxels of another color
Similar to how you would do that for 2D: IM=randi(255,[512 512 400]); count=sum(IM==200,'all'); %if your release doesn't ha...

7 years ago | 0

| accepted

Answered
Save data from MatLab GUI to struct .mat file
You should always load to a struct. That makes it clear where variables come from. Then it is also easier to extend the struct i...

7 years ago | 1

| accepted

Answered
How can I base my legend on the markers I defined in my plot?
The best solution is to set the DisplayName property when calling plot, and/or use an array of handles to create the legend. See...

7 years ago | 0

| accepted

Answered
Legend repeating same color
Set the DisplayName property when calling plot, or use the output from plot to build your legend with specific handles. x=linsp...

7 years ago | 4

| accepted

Answered
write and read the same image but they are different
You should read the documentation of the functions you're using if you want to understand them. Matlab has excellent documentati...

7 years ago | 0

Answered
Make matlab use a function from a certain toolbox
You have assigned something to a variable named dist. That will shadow all functions. The solution is not to use dist as a varia...

7 years ago | 0

| accepted

Answered
Comparing 2 lists and assign a value
If you can make two arrays, you can use the ismember function, which should work well for large arrays as well.

7 years ago | 0

Answered
How do I end a program when a condition is met using only if-else-elseif statements?
Something like this will work (edit to add nesting): function out=MyFunction(in) if in<1 if in==0.5 %do somethin...

7 years ago | 0

| accepted

Answered
Why won't MatLab properly download onto my windows laptop?
If you go to your account (this link should get you there) you can click on your license number. Then go the 'Install and Activa...

7 years ago | 0

Answered
Custom GUI: Check for updates
You could probably have a function check your website at most once a week by calling your update function when starting some spe...

7 years ago | 1

| accepted

Answered
HOW Calculate the distance of points form one center in 2-D space and display output in a distance matrix?
This should do the trick: X=2*(rand(5,5)-0.5); Y=2*(rand(5,5)-0.5); x=0.3;y=0.3; d=point2pointcloud(X,Y,x,y) function d=p...

7 years ago | 1

| accepted

Answered
how can i covert following variables as Indexed variables ?
No need for a conversion, they already are indexed variables. Lets give a small example of what this message means: data=1:5; ...

7 years ago | 1

| accepted

Answered
How can i fit the data to the custom equation without using Curve fitting Toolbox ?
Sligthly exanpding on what Walter suggests: fun=@(ABCDE,t) ABCDE(1) + ABCDE(2) .* (1-exp(-t./ABCDE(3))) + ABCDE(4) .* (1-exp(-t...

7 years ago | 0

Answered
Where should we install third-party toolboxes under Windows?
My personal preference would be to pick 2 or 4. In general users messing with their copy of Matlab causes headaches. The advanta...

7 years ago | 1

Answered
why am I getting 'ugly' output?
At this point you should consider creating a small GUI for your input selection. But for your question at hand: you forgot to al...

7 years ago | 1

| accepted

Answered
How to show r square correlation and RMSE on a scatterplot
With the code below you can determine a fitted value for y. Now it should be easy to calculate the Rsquare and RMSE. Let me know...

7 years ago | 1

Answered
Array inside an Array
If you have only positive integers, you can use an undocumented feature of strfind: D=[0 1 1 2 3 4];d=[1 2 3]; strfind(D,d) % ...

7 years ago | 0

| accepted

Answered
How to make Matlab use all CPU cores?
The value of n is only 63, so the main constriction in your code is the while loop, which can't be parallelized. Matlab is fund...

7 years ago | 1

Answered
How to call .m file from an other .m file?
Scripts should only be used for examples and debugging. Your code is a function, so you shouldn't treat it as a script. It would...

7 years ago | 0