Replace character with another

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Ivan Mich
Ivan Mich 2020-12-6
评论： Ameer Hamza 2020-12-7
Hello.
Which command should I use in order to replace one character with another?
(For example in the word: Big, I would like to replace character i with a.)

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Walter Roberson
Walter Roberson 2020-12-6
Ran in:
S = 'Big'
S = 'Big'
S(S == 'i') = 'a'
S = 'Bag'
T = 'Big'
T = 'Big'
T = strrep(T, 'i', 'a')
T = 'Bag'
U = 'Big'
U = 'Big'
U = regexprep(U, 'i', 'a')
U = 'Bag'
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Walter Roberson
Walter Roberson 2020-12-6
Keep in mind that regexprep() is case sensitive by default.
Ameer Hamza
Ameer Hamza 2020-12-7
Note that, regexprep() might create "unexpected" result, for example,
>> out = regexprep(str,{'i','a'},{'a','e'})
out =
'Oel'
Depending on what you want, this might be the required outcome. But in such situation, I prefer replace()
>> out = replace(str,{'i','a'},{'a','e'})
out =
'Oal'

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