How to pass the same function to different columns?

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Armando MAROZZI 2020-4-3

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https://ww2.mathworks.cn/matlabcentral/answers/515052-how-to-pass-the-same-function-to-different-columns

评论： Armando MAROZZI 2020-4-3

采纳的回答： Rik

I would like to pass the same function to all the columns of an object.

I tried this code but it doesn't work

for j = 1:3
     autocorr(VAR.res(:,j))
 end

where basically I wanted to tell MATLAB "compute autocorrelation for all the 3 columns of VAR.res".

What did I do wrong?

Thanks

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Rik 2020-4-3

That is not an internal Matlab function, unless you meant autocorr. Also, do you want to treat each call as totally separate, or do you want to correlate those columns in some way as well?

Armando MAROZZI 2020-4-3

Yes, sorry, just edited. I want to treat each call as totally separate

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采纳的回答

Rik 2020-4-3

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/515052-how-to-pass-the-same-function-to-different-columns#answer_423761

You need to specify the target axes, otherwise the function will use gca for each call, so that will be the same axes.

figure(1),cfl(1)
n_cols=size(VAR.res,2);
for col = 1:n_cols
    ax=subplot(1,n_cols,col);
    autocorr(ax,VAR.res(:,col))
 end

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Armando MAROZZI 2020-4-3

thank you very much! Got it now! thanks again

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