how to identify empty , non-empty char matrix condition?

6 views (last 30 days)
I have a matrix "A" with size 4x8 char and having values:
'01:04:00'
'01:03:00'
' '
'01:01:00'
I want to identify the index of empty char. I.e. 3rd one.
I tried,
% first one
A == ""
% second one
A == ''
% third one
isempty(A)
% forth one
isspace(A)
% fifth one
A == ' '
% sixth one
A == " "
% everything shows zero output.
Can anyone please help?
Any help will be greatly appriciated.

Accepted Answer

Stephen23
Stephen23 on 18 Jul 2022
Edited: Stephen23 on 18 Jul 2022
M = [...
'01:04:00'
'01:03:00'
' '
'01:01:00'];
strcmp('',cellstr(M)) % CELLSTR removes trailing whitespace characters.
ans = 4×1 logical array
0 0 1 0
cellfun(@isempty,cellstr(M)) % CELLSTR removes trailing whitespace characters.
ans = 4×1 logical array
0 0 1 0
all(M==32,2) % match space character only.
ans = 4×1 logical array
0 0 1 0
all(M==' ',2) % match space character only.
ans = 4×1 logical array
0 0 1 0
all(isstrprop(M,'wspace'),2) % match any whitespace character.
ans = 4×1 logical array
0 0 1 0
  1 Comment
MP
MP on 18 Jul 2022
Really!!
Indeed that made a great help!
Thank you very much.

Sign in to comment.

More Answers (1)

MP
MP on 18 Jul 2022
@Stephen23: Could you please also look into my another question?
https://in.mathworks.com/matlabcentral/answers/1762535-how-to-find-the-nearest-matrix-between-two-matrices?s_tid=srchtitle

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!