Error in matlab Improper assignment with rectangular assignment with rectangular matrix

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Ede gerlderlands 2013-6-24

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hey matlab friends;

I want to find the locatons of matrixpoints which is given by comtime=[4449,1] from a matrix Tt= [5400,1] and i tried using a function

 for kk= 1:4449
 loc(kk)=find(Tt=comtime(kk,1))
 end

bur an error message which says 'Improper assignment with rectangular assignment with rectangular matrix' keeps coming. What can I do with it? thanks for your help.

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Tom 2013-6-24

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The number of elements you'll find each time will be different, so you can't put them into a standard array. Try using a cell array instead:

loc = cell(4449,1);
for kk= 1:4449
    loc{kk}=find(Tt == comtime(kk,1))
end

You can then access each one using the {} notation, e.g.

loc{1}

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Ede gerlderlands 2013-6-24

It's a long series and I don't know. That's what am looking for.

Jan 2013-6-24

Please consider rounding errors: The decimal comma seems to show, that the data are not written by Matlab. Comparing values like 734869.006944445 exactly can be tricky, because this could be rounded.

See http://www.mathworks.com/matlabcentral/answers/57444-faq-why-is-0-3-0-2-0-1-not-equal-to-zero

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