MATLAB: Rename a variable using a string

MATLABsavevariablevariables

Ok ok, I see everyone says to not create dynamic variables and all but I am trying to do something specific, if there is another method, Ill gladly accept it.
I have some mat files saved with tables, all the same type just different "Machines" on each different file.
I want to use a function to do things with those tables and save them with the same name. Here is what I have:
function DoStuff(Name)
Name=strcat(Name, 'TheRestOfTheFileName')
load('Folder', Name) %This puts the variable in the workspace with its own name
NewVar=load('Folder', Name)
NewVar=NewVar.(Name) %This creates a new variable with the data from the old one.
I want it this way so I can do the same process to all of the files just by changing the name and running it through this function.
Now after running stuff, I want it to save to the same place with the same name
I was thinking about saving over the original variable since I can use save('Folder', Name) and I have tried assignin('base', Name, NewVar) with no luck.
Can anyone suggest a way to do this?
I am thinking since this function will be in another, I can just call the result from DoStuff, then manually set and save it. Hopefully works but would be good to know a method for this either way
Thank you very much

Best Answer

"Rename a variable using a string"
Why bother? Both load and save work with scalar structures, which makes your task easy:
S = load(filename)
V = S.(name)
... do stuff with V
S.(name) = V;
save(filename,'-struct',S)
Or skip assigning to V and just work with S.(name) directly. You might also find other load and save options useful (e.g. specifying fields to import/save): read the documentation carefully!
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