Change substrings in a number of strings within a cell array

Question

I have a cell-array C with 7 strings inside C as follows:

 C =  { 'ABCDF'
'ABF'
'ABCDEFG'
'ABCDEF'
'ABDEFG'
'ABCDEFG'
'ABCEG' }

How can I change the 'AB' in each of the 3 first strings into 'BA'? The remain strings just keep the same as the original. The expected output will be as follows:

C =  { 'BACDF'
      'BAF'
      'BACDEFG'
      'ABCDEF'
      'ABDEFG'
      'ABCDEFG'
       'ABCEG' }

Did you try writing a loop? strfind might be useful.

Daniel
– Daniel

2015-12-06 16:55:30 +00:00
Commented Dec 6, 2015 at 16:55 — Daniel
– Daniel, Commented Dec 6, 2015 at 16:55

Robert Seifert · Accepted Answer · 2015-12-06 18:55:50Z

4

That is exactly what regexprep

C(1:3) = regexprep(C(1:3),'AB','BA')

or strrep does:

C(1:3) = strrep(C(1:3),'AB','BA')

C = 

    'BACDF'
    'BAF'
    'BACDEFG'
    'ABCDEF'
    'ABDEFG'
    'ABCDEFG'
    'ABCEG'

edited Dec 6, 2015 at 18:55

answered Dec 6, 2015 at 16:59

Robert Seifert

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1 Comment

Luis Mendo Over a year ago

Also strrep(C,'AB','BA')

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