How can I determine the frequency of a text term occurring in a matrix and add this frequency to the matrix?

1 view (last 30 days)
I have a matrix of terms that are unique or multiple and I need to count the frequency of each unique term and add this to the matrix so that I can plot it.
An example of my dataset is below.
'CSARDLSGG##YNEQFF' 'CSARDLRPGGAYNEQFF' 'CSALGGGSTYNEQFF' 'CSALGGGSTYNEQFF' 'CSALGGGSTYNEQFF' 'CSAGVRLAGGVYQETQYF' 'CSAGTRK#NTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF'

Answers (2)

Thomas
Thomas on 6 Dec 2012
a={'CSARDLSGG##YNEQFF' 'CSARDLRPGGAYNEQFF' 'CSALGGGSTYNEQFF' 'CSALGGGSTYNEQFF' 'CSALGGGSTYNEQFF' 'CSAGVRLAGGVYQETQYF' 'CSAGTRK#NTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF' 'CSAGTESNTEAFF'}; % input
out=unique(a); % unique values in a
for ii=1:numel(unique(a))
count(ii)=sum(strcmp(a,out(ii)));
end
unq=out'
count'

Megan
Megan on 6 Dec 2012
How do I apply a scalar?
ii =
1 2 3 4 5 6
Error using strcmp Inputs must be the same size or either one can be a scalar.
  1 Comment
Thomas
Thomas on 6 Dec 2012
I'm assuming you want to find frequency of numeric scalar
a=[1 2 3 4 5 6 3 4 2 3];
out=unique(a);
for ii=1:numel(out)
count(ii)=sum(a==out(ii));
end
fulloutput=[out' count']

Sign in to comment.

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!