Exclude a keyword from a file search?

3 次查看（过去 30 天）
Jacqueline
Jacqueline 2013-7-24
Hi, so I have a set of files such as:
'20130723_SPLBRENT3_000003.mat'
'20130723_SPLBRENT3_005948.mat'
'20130723_SPLBRENT3_015948.mat'
'20130723_SPLBRENT3_025948.mat'
'20130723_SPLBRENT3_035949.mat'
'20130723_SPLBRENT3_045948.mat'
'20130723_SPLBRENT3_055948.mat'
'20130723_SPLBRENT3_065948.mat'
'20130723_SPLBRENT3_075949.mat'
'20130723_SPLBRENT3_085949.mat'
'20130723_SPLBRENT3_095949.mat'
'20130723_SPLBRENT3_102025.mat'
'20130723_SPLBRENT3_102931.mat'
'20130723_SPLBRENT3_112947.mat'
'20130723_SPLBRENT3_122947.mat'
'20130723_SPLBRENT3_132947.mat'
'20130723_SPLBRENT3_142947.mat'
'20130723_SPLBRENT3_152947.mat'
'20130723_SPLBRENT3_162947.mat'
'20130723_SPLBRENT3_172947.mat'
'20130723_SPLBRENT3_180744.mat'
'20130723_SPLBRENT3_190749.mat'
'20130723_SPLBRENT3_200749.mat'
'20130723_SPLBRENT3_concat.mat'
These are files from yesterday (7/23), and I made a concat file that combines all the files into one, which is at the bottom. I'm writing a code that counts the number of files that were uploaded yesterday, but I don't want the concat file to count. Is there anyway I can exclude the concat.mat file?

请先登录，再回答此问题。

采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2013-7-24
file={'20130723_SPLBRENT3_180744.mat'
'20130723_SPLBRENT3_190749.mat'
'20130723_SPLBRENT3_200749.mat'
'20130723_SPLBRENT3_concat.mat'}
new_file=file( cellfun(@(x) isempty(regexp(x,'concat')),file))
  2 个评论
Jan
Jan 2013-7-26
编辑：Jan 2013-7-26
Again I mention, that cellfun is slow when combined with anonymous functions. I do not see a reason to let Matlab waste time and suggest:
new_file = file(cellfun('isempty', regexp(file, 'concat')))
And if you do not like the string methods of cellfun, this is at least faster than the anonymous function:
new_file = file(cellfun(@isempty, regexp(file, 'concat')))
@Azzi: Do you think it is worth to suggest the faster cellfun methods without anonymous functions in the forum? Is there any reason that you avoid them?

请先登录，再进行评论。

更多回答（1 个）

Jan
Jan 2013-7-26
If this is time-critical, you can use FEX: strncmpr, which is identical to strncmp but compares the end of the string:
new_file = file(~strncmpr(file, '_concat.mat', 11));

类别

在 Help Center 和 File Exchange 中查找有关 Function Creation 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by