How to recognize if there is in a character a point '.'?
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johan
am 8 Apr. 2019
Kommentiert: madhan ravi
am 8 Apr. 2019
Dear Matlab community,
Maybe somebody can help me with the following problem. For a project I would if there is a character a point '.' by scanning each element of the character by returning a true (1), false (0) as answer in an array. I tried the following:
xx='00-055.0'
isstrprop(xx,'punct')
ans =
1×8 logical array
0 0 1 0 0 0 1 0
At the moment it also shows e.g. '-', but is there a method to find explicitely the point '.'?
Thank you.
Regards
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madhan ravi
am 8 Apr. 2019
Bearbeitet: madhan ravi
am 8 Apr. 2019
contains(regexp(xx,'.','match'),'.')
%or
strcmp(regexp(xx,'.','match'),'.')
%or
cellfun(@(x)x=='.',regexp(xx,'.','match'))
Gives:
ans =
1×8 logical array
0 0 0 0 0 0 1 0
4 Kommentare
Guillaume
am 8 Apr. 2019
Well, then you don't need to use a regular expression engine to split a char vector into a cell array of individual characters
num2cell(xx)
will do the job faster.
Weitere Antworten (2)
Guillaume
am 8 Apr. 2019
Bearbeitet: Guillaume
am 8 Apr. 2019
Edit: I misunderstood the question. It's even simpler than what I initially wrote.
Simply:
xx == '.'
If you want to check multiple characters at once, e.g. . and +
ismember(xx, '.+')
--------
Original answer
Simply
contains(xx, '.')
or
any(xx == '.') %probably faster than contains but only work as long as you're searching just for one character
if wanting to check if any of several characters are in xx, e.g. . and +:
any(ismember(xx, '.+')) %are any character of xx member of the set .+ ?
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