Error in matlab Improper assignment with rectangular assignment with rectangular matrix

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.

Answer 1

[Tom]

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}

[Ede gerlderlands]

yeah.But am getting empty values. Don't know why

[Ede gerlderlands]

I mean, Only the values that starts from 1 and over 9 interval are there , the remaining are empty

[Tom]

do you know what the answer should be? Can you provide some values for comtime and Tt to test with?

[Ede gerlderlands]

comtime =734869 734869,006944445 734869,013888889 734869,020833333 734869,027777778 734869,034722222 734869,041666667 734869,048611111 734869,055555556 734869,062500000 734869,069444445

Tt=734869 734869,006944445 734869,013888889 734869,020833333 734869,027777778 734869,034722222 734869,041666667 734869,048611111 734869,055555556 734869,062500000 734869,069444445 734869,076388889

[Ede gerlderlands]

All comtime values are members of Tt. so it shouldn't be empty.

[Tom]

And do you know what the answer should be for that data?

[Ede gerlderlands]

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

[Jan]

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