How to get the row indices
1 view (last 30 days)
Show older comments
Kanakaiah Jakkula
on 13 Apr 2017
Commented: Walter Roberson
on 14 Apr 2017
Hi,
I have the below array, and I want to get the idices of names starting with PRS.
PRS.BG02K65E5T9
PRS.UG02K145E5T20
Ark.prgrma
YUI_PRS.UG02K145E5T20
PRS.GG02K200E6T20
1. I want to know which row of name start with PRS. (row1,2,5) 2. Count of names starting with PRS. and not start with PRS. (3 &2)
Many thanks in advance,
2 Comments
Steven Lord
on 13 Apr 2017
How is the data stored? As a char array, as a cell array each element of which is a char vector, as a string array, etc.? And which release of MATLAB are you using?
Accepted Answer
Walter Roberson
on 13 Apr 2017
Edited: Walter Roberson
on 13 Apr 2017
S = { 'PRS.BG02K65E5T9',
'PRS.UG02K145E5T20',
'Ark.prgrma',
'YUI_PRS.UG02K145E5T20',
'PRS.GG02K200E6T20'};
find(strncmp(S,'PRS',3))
2 Comments
Walter Roberson
on 14 Apr 2017
mask = strncmp(S,'PRS',3);
row_indices = find(mask);
match_count = sum(mask);
nonmatch_count = sum(~mask);
More Answers (0)
See Also
Categories
Find more on Introduction to Installation and Licensing 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!