MATLAB: How to match with random cell name with varied format

match with random cell name

I have a series of cell array
XXXX-20-0266-3.dat
XXXX-10-01-12_03.03.03 AM.dat
XXXX-10-01-12_01.03.03 PM.dat
XXXX-30-0333.dat
I want to match with AM or PM, I try to use regexp function, regexp(cell{2}, [xxxx '-?\w*AM.csv'], it does not work. how I can achieve it since the middle always change its length and content? Please help me. I appreciate for your time and efforts.

Best Answer

Not exactly sure what kind of variable you want to get, but study this snippet:
ca = {'XXXX-20-0266-3.dat';
'XXXX-10-01-12_03.03.03 AM.dat';
'XXXX-10-01-12_01.03.03 PM.dat';
'XXXX-30-0333.dat'}
amIndexes = strfind(ca, 'AM') % amIndexes is a cell
pmIndexes = strfind(ca, 'PM') % pmIndexes is a cell
logicalIndexesAM = ~cellfun(@isempty, amIndexes)
logicalIndexesPM = ~cellfun(@isempty, pmIndexes)
linearIndexesAM = find(logicalIndexesAM)
linearIndexesPM = find(logicalIndexesPM)
In the command window:
ca = 
    'XXXX-20-0266-3.dat'
    'XXXX-10-01-12_03.03.03 AM.dat'
    'XXXX-10-01-12_01.03.03 PM.dat'
    'XXXX-30-0333.dat'
amIndexes = 
    []
    [24]
    []
    []
pmIndexes = 
    []
    []
    [24]
    []
logicalIndexesAM =
     0
     1
     0
     0
logicalIndexesPM =
     0
     0
     1
     0
linearIndexesAM =
     2
linearIndexesPM =
     3
Does that help at all? Can you get whatever you need from that? Or do you need more help?
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