how to delete certain rows that contain string

I have the following strings within matrix m:

'batch_167_indication_A12-1_replicate_1' 'batch_167_indication_A12-1_replicate_2' 'batch_167_indication_ABC_replicate_3' 'batch_167_indication_ABC_replicate_1' 'batch_167_indication_DEF_replicate_1' 'batch_167_indication_DEF-1_replicate_1'

I only want the output to print:

'batch_167_indication_ABC_replicate_3' 'batch_167_indication_ABC_replicate_1' 'batch_167_indication_DEF_replicate_1' 'batch_167_indication_DEF-1_replicate_1'

Answer 1

[Evan]

So you want to delete any string that contains the string 'A12-1'? Or is it more general than that? Assuming it's just that one string, try this:

C = {'batch_167_indication_A12-1_replicate_1' 'batch_167_indication_A12-1_replicate_2' 'batch_167_indication_ABC_replicate_3' 'batch_167_indication_ABC_replicate_1' 'batch_167_indication_DEF_replicate_1' 'batch_167_indication_DEF-1_replicate_1'}; % cell array of strings

Cnew = C(cellfun(@(s)isempty(regexp(s,'A12-1')),C));

If C isn't a cell array:

C = char('batch_167_indication_A12-1_replicate_1','batch_167_indication_A12-1_replicate_2','batch_167_indication_ABC_replicate_3','batch_167_indication_ABC_replicate_1','batch_167_indication_DEF_replicate_1','batch_167_indication_DEF-1_replicate_1') %character array

Cnew = C(arrayfun(@(i)isempty(regexp(C(i,:),'A12-1')),1:size(C,1)),:);

[Jos (10584)]

No need for regexp ...

IDX = strfind(C,'A12-1')
TF = cellfun('isempty', IDX)
Cnew = C(TF);

which can, of course, be combined into a less readable one-liner ...

Cnew = C(cellfun('isempty', strfind(C,'A12-1'))) ;