Why am I getting "Subscripted assignment dimension mismatch."

Hello,

I keep getting this error when I run the code on a certain dataset. but have used this code before without problems. For some reason it does not work past the second iteration.

for k=1:29
h(k,:) =sprintf('aircraft at %3.4f degrees latitude', parnam{1,k}.data(1,1)) ;
end

Answer 1

[Ken Atwell]

It looks like you're trying to create a 2D matrix of char(acter)s. For this to work, each char vector needs to be exactly the same length. If you are on a recent-ish version of MATLAB, a vector of string might serve you better:

h = strings(1,29);
for k=1:29
    h(k) =sprintf('aircraft at %3.4f degrees latitude', parnam{1,k}.data(1,1)) ;
end

[Alex]

Thank you, but this gives an error

h = strings(1,29);

??? Attempt to execute SCRIPT strings as a function:

C:\Program Files (x86)\MATLAB\R2010a Student\toolbox\matlab\strfun\strings.m

I read the documentation and found I just needed curly braces. This works.

for k=1:29
h{k} =sprintf('aircraft at %3.4f degrees latitude', parnam{1,k}.data(1,1)) ;
end

[Walter Roberson]

You do not have "a recent-ish version of MATLAB".

h = cell(1,29);
for k=1:29
  h{k} = sprintf('aircraft at %3.4f degrees latitude', parnam{1,k}.data(1,1)) ;
end

[Alex]

Yes, I use R2010A. This works for initializing the string vector. Thank you.

h = cell(1,29);