Looping over paths, more than one loop

Dear all,

suppose I have a vector of names:

vectorOfNames = {'A','B','C'};

and my goal is to iterate through this vector

for s = 1:length(vectorOfNames)
    % code of variable 1
    path1 = strcat('AAAAAAAA/',char(vectorOfNames(s)),'/AAAAAAA');
    keepCode(1,s) = {path1};
    % code of variable 2
    path2 = strcat('BBBBBBBBbbbb/',char(vectorOfNames(s)),'/bbbbbbbbb');
    keepCode(2,s) = {path2};
    % code of variable 3
    path3 = strcat('ccccccc/',char(vectorOfNames(s)));
    keepCode(3,s) = {path3};
end

and use each of name to get the paths below, which are stored in an array:

My question: is there any possibility to modify this code to iterate over 2 loops, the first loop over the names (as is) and the second loop over the paths, given that the names are part of the paths and are variable. In this example, there are only 3 types of paths, but in fact I have 35 of them, and doing it the way I showed just makes the code too extensive.

Kind regards,

Joanna Przeworska

[Bob Thompson]

I'm sure what you're asking about is possible, but I also don't entirely understand. How would looping over the path change from what you have now? As I see it your loop generates a matrix of file locations for all possible file and folder locations. Are you trying to reduce the number of possible results, or something else? If you are trying to reduce the number of results, how are you correlating the files and paths?

Answer 1

[Jan]

I do not understand, what your inputs are exactly. But maybe this idea helps you:

keepCode = cell(length(vectorOfNames), length(whatEver));  % Pre-allocation
for s1 = 1:length(vectorOfNames)
    for s2 = 1:length(whatEver)
      folder = strcat(wharEver{s2}, vectorOfNames{s1}, '/AAAAAAA');
      keepCode{s1, s2} = folder;
    end
end

Notes: cellArray{k} is faster than char(cellArray(k)).

Answer 2

[Joanna Przeworska]

Dear Bob,

Thank you for your response.

Basically, I want to get the same result as presented, but I would like to store the paths in a separate variable (including the variable part of that path) like below (most likely variable 'paths' is not properly defined, but it serves to illustrate my view), and iterate over that variable, instead of writing each path separately in the code as I presented.

paths =
strcat('AAAAAAAA/',char(vectorOfNames(s)),'/AAAAAAA')
strcat('BBBBBBBBbbbb/',char(vectorOfNames(s)),'/bbbbbbbbb')
strcat('ccccccc/',char(vectorOfNames(s)))

To be more specific, I imagine the code would act as follows. In the 1st loop (over paths), in each iteration, the code reads the path from the variable (e.g. paths), and then executes the 2nd loop (over names), and finally save the entire path.

I'm not sure if something like this can be programmed, but I would like the code to work as described.

Answer 3

[Joanna Przeworska]

Dear Jan,

This idea helps me a lot and solves all my problems related to this exercise.

Thank you very much for your assistance.

Kind regards,

Joanna Przeworska