MATLAB: Replace each characters of strings with ‘-‘

cell arraysmatrix manipulationstring

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,'-')

Best Answer

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 =
    '------'
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