"My problem is in the for loop."
Yes, it is.
"... my loop reads all the datafiles as tables, but doesnt save them as individual variables in the workspace. How to do it?"
That is your problem.
The simplest, neatest, and most efficient answer to this question is "don't".
Magically creating or accessing variables names in a loop is exactly how beginners force themselves into writing slow, buggy, pointlessly complex code that is hard to debug. Read this to know more about why:
Actually the fastest, neatest, and most efficient way for you to import that data into the MATLAB workspace would be to use indexing and one array: either an ND numeric array if the number of rows and columns are the same, or into a cell array if these are different. Using indexing is trivally simple to understand, is extremely efficient (unlike what you are trying to do), and simple to debug. I would reccomend that you do that because the filenames that you gave indicate a sequence 1, 2, ..., and that is exactly what indexing efficiently encodes:
C = cell(1,numel(files));
for k = 1:numel(files)
C{k} = load(...);
end
And then access the data simply using idexing:
C{1} % OD1
C{2} % OD2
So simple.
So efficient!
As an alternative which is less efficient than simple indexing (but still much more efficient than magically creating variable names) is to use the fields of a structure: e.g.:
S = struct();
for k = 1:numel(files)
fieldname = ... % generate fieldname from filename
S.(fieldname) = load(...)
end
And you can then access your data using
S.OD1
S.OD2
...etc
I would recommend that you use indexing.
