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Replace each characters of strings with '-'

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Suresh Dahal
Suresh Dahal 2017-8-10
评论： Jan 2017-8-10
Hi, I want to replace all the characters of a string by '-', say, flowers will be like '-------'. Please tell me how am I supposed to do that. I am totally new to matlab. As a beginner I've done this so far.
%Select a word
B='skyyiy'
%input letter
c='y'
%stringlength
l=strlength(B)
%indices of letters occurring
d=strfind(B,c)
newStr=strrep(B,c,'-')
  2 个评论
KSSV
KSSV 2017-8-10
It is working fine right????_y_ is replaced by '_'....what you expect?
Suresh Dahal
Suresh Dahal 2017-8-10
编辑：Suresh Dahal 2017-8-10
yes but when I try to replace whole word 'skyyiy' by newStr=strrep(B,B,'-') it shows only '-' not '------', why's that I am not sure. I want to replace whole word with ---- at on instance.

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采纳的回答

KL
KL 2017-8-10
if you've no conditions but just to have the same length as the old string then maybe something like
>> B='skyyiy'
newStr = B;
newStr(1:end) = '-'
B =
'skyyiy'
newStr =
'------'

更多回答（1 个）

Walter Roberson
Walter Roberson 2017-8-10
regexprep(B, c, '-')
or
B(B==c) = '_';

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