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# how do i save looped output into 1 variable matrix

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john borsellino on 9 May 2013
c=19;
>> D=[];
>> for k=1:c;
Z=[X(:,1),Y(:,1)];
p=anova1(Z)
D=save(p)
X(:,1)=[];Y(:,1)=[];
end
##### 4 CommentsShowHide 3 older comments
john borsellino on 10 May 2013
"save" to store the result of an applied function...in this case i get 19 individual results...(that need to be stored or saved together as a group) "1 individual matrix"== all 19 answers saved together in a new "vertex" or a 1x19 matrix...sorry still learning the jargon

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### Accepted Answer

James Kristoff on 13 May 2013
% X and Y are 3x19 matricies
%
% This syntax makes sure that if you end up having more (or less) columns
% in the future, you don't need to change the code
numColumns = size(X, 2);
% Pre-allocate for speed (create a 1 x numColumns vector)
p = zeros(1, numColumns);
% I used length(p) here to signal the intent that the loop is meant for
% modifying the vector p
for k = 1:length(p);
% using the loop variable *k* means that MATLAB will use a different
% column from X and Y to create Z for each loop
Z=[X(:,k),Y(:,k)];
% this will store the resulting value in the k-th position in the vector
% *p*
p(k)=anova1(Z);
end
##### 2 CommentsShowHide 1 older comment
john borsellino on 16 May 2013
the anova1() function displays a table and chart, along with the p-value,the manual says that i can turn this display off,but it doesn't say how... can you rewrite the p(k)= anova1(Z)....i've tried p(k)= anova1(Z, ,'off'),...=anova1(Z,'off')...idk what to do...what am i not getting?

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### More Answers (1)

bym on 9 May 2013
c=19;
% D=[];
p = zeros(c,1); % preallocate
for k=1:c;
Z=[X(:,1),Y(:,1)];
p(k)=anova1(Z);
%D=save(p) unecessary
%X(:,1)=[];Y(:,1)=[]; don't change X or Y!
end
##### 2 CommentsShowHide 1 older comment
john borsellino on 10 May 2013
...and thanks for your input and time...only 8 weeks on matlab...be gentle

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