Help with splitting a string into a character array.
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Let's say I have a string s='Potato'.
How would I split that up into an array so that it looks like t='P, o, t, a, t, o'?
I'm currently doing it like this:
%%Choose word
word=datasample(wordbank,1)
%identify length of word
wordlength=strlength(word)
sol = split(word,"")
The only problem with doing it this way is that there are two blank spots and the beginning and end of the character array. It looks like this when outputted:
"" "P" "o" "t" "a" "t" "o" ""
How can I split it so that the blank values at the beginning and end aren't there?
댓글 수: 1
Fady Samann
2020년 9월 5일
the string is already an array of char. So, s(1) is 'P'. However, if you want to remove the blanks, you have to do it by a 'for' loop and test for blanks with 'if' condition.
s=' Potato ';
c=1;
for i=1:length(s)
if s(i)~=' '
new_s(c)=s(i);
c=c+1;
end
end
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Mischa Kim
2017년 11월 5일
편집: Mischa Kim
2017년 11월 5일
You could use
s = 'Potato';
t = num2cell(s)
t =
1×6 cell array
{'P'} {'o'} {'t'} {'a'} {'t'} {'o'}
댓글 수: 3
Akash Yadav
2021년 11월 7일
isn't num2cell or num2string is used on a number array to convert it to string or cell array? what explains the working of num2cell on a string?
Stephen23
2021년 11월 7일
편집: Stephen23
2021년 11월 7일
"isn't num2cell or num2string is used on a number array to convert it to string or cell array?"
No, NUM2CELL splits the elements of the input array into cells of a cell array. It does not "convert" anything: all of the original data still exists with its original class, just (in general) in more but smaller (e.g. scalar) arrays than beforehand.
"what explains the working of num2cell on a string?"
NUM2CELL operates the same regardless of the input class (this is clearly documented in the NUM2CELL documentation, where it lists all of the permitted input classes):
str = ["hello","world"]
out = num2cell(str)
Storing scalar strings in a cell array should be avoided.
PS: the name is likely a relic of when MATLAB was young and only supported numeric arrays.
PPS: NUM2STRING is not a MATLAB function:
num2string(pi)
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