Not all cell converte to double

Hello. I don't know how to convert cell to double and cut part of cell. This is my list:

    list={'6.txt' '13.txt'   '14.txt'   '19.txt'   '45.txt'   '53.txt'};

and I need it without '.txt'.

Thanks in advance for any help.

Answer 1

[dpb]

>> sscanf([list{:}],'%d.txt')
ans =
   6
  13
  14
  19
  45
  53
>>

[Jan]

This is surprisingly fast even for large cell strings. A further speedup can be achieved by using FEX: CStr2String, which seems to perform a better pre-allocation of the output:

sscanf(CStr2String(list), '%d.txt');

[dpb]

I'm not sure why you think decent performance herein is surprising, Jan? I'd think this would be pretty much expected...

Answer 2

[Walter Roberson]

cellfun( @(s) sscanf(s, '%d'), list)

[dpb]

That's good side effect w/ cellfun in this case--the error on the '.txt' portion of the input string goes silently away w/o writing the explicit format string, Walter. I took the other way out to avoid the anonymous function definition but in production yours is probably preferable.

Answer 3

[Azzi Abdelmalek]

list=str2double(strrep(list,'.txt',''))