Strings vs Char and array indices

Why do I keep getting this error message?
Array indices must be positive integers or logical values.
Error in movies_by_country (line 3)
if strlength(movies(ii).countries) >= strlength(movies(ii-1).countries)

 采纳的回答

I guess in your code, the variable ii starts from 1 which try to read
strlength(movies(0).countries)
In MATLAB the array indexes start from 1, so it gives an error.

4 个评论

so instead of writing strlength(movies(ii-1).countries) how can I write it so that the function compares the new ii-th iteration to the previous ii-th iteration?
starts the for loop from 2 like this
for ii=2:numel(movies)
Glad to be of help.

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