Efficient way to assign single vectors to a cell array

Hello everybody,

I have M vectors, each one containing N(i) elements [with i = 1:M]; so the length of each vector is variable. I read each vector with a for loop. What I would like to do is creating a cell array, with M cells, where each cell (i) contains NOT a "reference" to the vector, but the N(i) elements of each vector.

This is what I am doing,

monthName = {'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', ...
    'Jul', 'Aug', 'Sept', 'Oct', 'Nov', 'Dec'};

for j = 1:length(monthName)
        filename = [directory, 'series', monthName{j}, '.mat'];
        tmp = load(filename);
        whos tmp
        rawSeries{j}(:,1) = tmp;
end

And I get (I reported only 2 of 12 outputs),

Name      Size              Bytes  Class     Attributes
tmp       1x1             4046744  struct              
Name      Size              Bytes  Class     Attributes
tmp       1x1             3653128  struct           

And the cell array rawSeries is a 1x12 cell, where each cell is a 1x1 struct that contains the N(i)x1 vector. This is not what I want.

I would like rawSeries to be a 1x12 cell array, where each cell contains N(i)x1 vector. So that,

rawSeries{1}(:,1)
rawSeries{2}(:,1)

would print the whole vectors cantained in the first and second cell.

Then if it is possible, I would like to do that in the fastest way since I have very large datasets.

Thank you in advance

Answer 1

[Matt J]

for j = 1:length(monthName)
    
        filename = [directory, 'series', monthName{j}, '.mat'];
        
        S = load(filename);

        rawSeries{j}(:,1) = S.whatever; %"whatever" should be the name of the variable in the .mat file
end

[Pietro Murialdo]

Ok thank you very much, I was missing the .whatever and I could not understand