Replace character with another

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.)

Answer 1

[Walter Roberson]

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'

[Ameer Hamza]

V = 'Big';
V = replace(V, 'i', 'a')

[Ivan Mich]

Ok one more question . If i want to replace more than onre characters (for example, O with e), How could I modify the previous command?

I have tried ths but it is no use:

regexprep(V,{'i','a'},{'O','e'});

[Stephen23]

str = 'Oil';
out = regexprep(str,{'i','O'},{'a','e'})

out = 'eal'

[Ivan Mich]

i have tried this :

oo=regexprep((h),{'A','i'},{'O','e'}); ,

where h is 20x1 cell, and it is not working. I mean some characters not replaced

[Walter Roberson]

Keep in mind that regexprep() is case sensitive by default.

[Ameer Hamza]

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'