how to omit the the dot and numbers

Hi,,

I have this command :

PC_DI = a0.c1.c3.d12

tt=regexp(PC_DI, '.', 'match')

tt = 

      'a'    '0'    '.'    'c'    '1'    '.'    'c'    '3'    '.'    'd'    '1'    '2'

how can I cancel the numbers and dots, that the result should be as follows:

tt = 

      'a'    'c'    'c'     'd'

Thanks

Answer 1

[Jan]

If "PC_DI = a0.c1.c3.d12" should mean this:

PC_DI = 'a0.c1.c3.d12'

I suggest to omit the regexp and use:

tt = PC_DI(isletter(PC_DI));

Alternatively, if you are looking for lowercase letters only:

tt = PC_DI(PC_DI >= 'a' & PC_DI <= 'z');

If you need the output to be a cellstring:

tt = cellstr(tt');

Answer 2

[Richard]

Not sure yet about cancelling the numbers, but you could omit the dots as follows:

tt = {'a','0','.','c','1','.','c','3','.','d','1','2'};
tt(strcmp(tt,'.'))=[];