how to find mean from cell
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Hi all!
I have the matrix:
M=[Finally(:,1:8)];
S=[Finally(:,9:2012)];
and
Mc= mat2cell(M, rows, 8);
Sc= mat2cell(S, rows, 2004);
I want to find the means of Mc and Sc.
I have the script
for k1 = 1:size(Mc,1)
W(k1)=mean(Mc{k1}(1:end,1));
end
but it doesn't work.
Is anything wrong?
Thank you!
2 Commenti
Guillaume
il 20 Gen 2015
You'll have to clarify, the 'it doesn't work' by posting the entire error message that you get (including the line that errors out).
As it is, your code should work. Here is a slight rewrite:
M = rand(100, 8); %demo data
rows = 20 * ones(1, size(M, 1)/20); %demo data
Mc = mat2cell(M, rows, size(M, 2));
W = cellfun(@(m) mean(m(:, 1)), Mc);
Star Strider
il 20 Gen 2015
Modificato: Star Strider
il 20 Gen 2015
This looks familiar.
Thodoris, how do you calculate your ‘rows’ variable? That is likely what we will need to Answer your Question.
Risposte (1)
Titus Edelhofer
il 20 Gen 2015
Hi,
first of all, why do you convert the matrix to a cell? Why not call mean for M? It should give you the mean for all columns directly. Second, using Mc{k1}(1:end,1) can be simplified by Mc{k1}(:,1). Third, "It doesn't work" sounds like you get an error message. Tell us the error message and it will be easier for us to diagnose.
Titus
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