how do i save looped output into 1 variable matrix

Question

john borsellino 2013-5-9

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/75236-how-do-i-save-looped-output-into-1-variable-matrix

 c=19;
>> D=[];
>> for k=1:c;
Z=[X(:,1),Y(:,1)];
p=anova1(Z)
D=save(p)
X(:,1)=[];Y(:,1)=[];
end

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john borsellino 2013-5-10

this window is not working with me

john borsellino 2013-5-10

"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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Answer 1

James Kristoff 2013-5-13

2
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https://ww2.mathworks.cn/matlabcentral/answers/75236-how-do-i-save-looped-output-into-1-variable-matrix#answer_85247

在 MATLAB Online 中打开

% 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

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john borsellino 2013-5-14

this works...thankyou...can you tell why matlab seperates my identifier column and row of column headers from the data...and how to put them back together...with a new column of data...i have G= [A,B,Z] %%which puts the data columns and the answer column together..

john borsellino 2013-5-16

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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Answer 2

bym 2013-5-9

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/75236-how-do-i-save-looped-output-into-1-variable-matrix#answer_84942

在 MATLAB Online 中打开

 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

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john borsellino 2013-5-10

but if i don't remove the cloumns from X and Y won't i just get the same answer 19 times...how do i tell matlab to move to the next set of elements in A and B???

john borsellino 2013-5-10