for loop

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ARS
ARS 2012년 6월 11일
Hi All,
I have a basic syntax question regarding a for loop. I am trying to change the matrix(struct) name in a loop to copy values in another array using the same loop variable as follows:
for k=1:16
tstats(k,1)=results(num2str(k)).tstat
end
I have struct matrices named from 'results1 to results16'. tstat is the field I am trying to extract from and write to tstat matrix.
I think the problem is with syntax.
Any help?
Regards,
AMD.

답변(2개)

Walter Roberson
Walter Roberson 2012년 6월 11일
  댓글 수: 3
Jan
Jan 2012년 6월 11일
Your problem is not how to get the values from these variables, but it is caused by "I have struct matrices named from 'results1 to results16'" already. The link Walter has posted shows, that using "results{1}" to "results{16}" would be a smarter naming scheme.
It's like including the phone number to your name: It solves some problems, but in total the usage gets less efficient.

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Kevin Holst
Kevin Holst 2012년 6월 11일
You can't call or write to a variable like that in a loop, unfortunately. My suggestion would be to have a structure that contains all of your 'results##' structures. Then you could use something like this:
for k=1:16
tstats(k,1)=results.(['results' num2str(k)]).tstat
end

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