String matching and data extract
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Hello, I am trying to match two string arrays and extract a matrix of datas by using the results. When I try to do, I have this error. "Improper assignment with rectangular empty matrix" My code is
for i=1:length(A)
I = strmatch(A(i), B, 'exact');
unique_data_(i) = max(Data(I,:));
end
How can I do my work?
Thank you, Have a good day
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Guillaume
am 18 Mai 2016
I've never seen that exact error message (which version of matlab?) but your code is certainly going to produce an error if there is no match for an element of A since you'll try to assign empty to a scalar. And if there is more than one match and Data has more than one column, max(Data(I, :) is going to return a vector, which will also fail to be assigned to a scalar.
How to fix that depends on what you want to do in either case.
Also matlab tells me that "strmatch is not recommended. [...] To find an exact match for a string, use strcmp." Certainly, the way you're using it strcmp would actually be better.
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