saving multiple .mat files with the same name from a script

Good day,

Please how can I save a variable in a folder each time i run my script.

For instance, I have two outputs; test=[2,5,8] and test=[1,2,3] by runing the script twice.

I use save ('data.mat','test'); to save the variable as data.mat file. But each time i run the script for the second time it replaces the first .mat file.

Is there any way it could be save as data1.mat, data2.mat ......data20.mat (if i run the script 20 times) so that i can call it for later use?

Also, an insight on how to load all the .mat files will be appreciated

Thanks

Answer 1

[Rik]

Use sprintf to form the file names with a number.

During the loading, you should load to an output variable and store all the data in a large array, don't attempt to generate numbered variables.

Answer 2

[Stephen23]

"Is there any way it could be save as data1.mat, data2.mat ......data20.mat (if i run the script 20 times)..."

You could download my FEX submission nextname, which was designed for exactly that situation:

https://www.mathworks.com/matlabcentral/fileexchange/64108-next-available-filename

It has plenty of examples in the online description, the Mfile help, and the HTML documentation, so you should not have any difficulties using it.