How to put the lengths of each string in a cell array of strings into a single vector?

10 views (last 30 days)
I have tried in vain to put this one together. This does work: s = seq(n,:),where n is the specific line for a the string. I've tried using the length and size functions, but I can't get the individual row lengths into a vector. I've also searched through the function lists and looked for similar questions. Ideally, I want to index the cell's in their original order, and put the index number next to the length value. I know how to create a vector with numbers 1 to 100 --v = 1:1:100, but I'm not sure how to line that up and add it to the string array. I apologize for my newbiness, I admit this is a beginner question. Any feedback is appreciated. thx

Accepted Answer

Ken Atwell
Ken Atwell on 6 Jun 2011
If I understand your question correctly:
A = {'Hello', 'World!!!'}
B = cellfun(@length, A)
cellfun executes a function over every element in a cell array.
  1 Comment
Adam Quintero
Adam Quintero on 7 Jun 2011
This works quite well. Thank you for the explanation of cellfun, it is quite helpful. It gets rid of the overhead of a loop, and I can already see tons of applications.
Much thanx

Sign in to comment.

More Answers (2)

Rob Graessle
Rob Graessle on 6 Jun 2011
Not a particularly elegant solution, but it works:
>> a={'the', 'quick', 'brown', 'fox'}
a =
'the' 'quick' 'brown' 'fox'
>> for ii=1:length(a), wordLengths(ii)=length(a{ii}); end
>> wordLengths
wordLengths =
3 5 5 3

Matt Fig
Matt Fig on 6 Jun 2011
a={'the', 'quick', 'brown', 'fox'}
L = cellfun('size',a,2)

Categories

Find more on Characters and Strings in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!