How do I extract a row of data from a cell array based on a string?

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Dave
Dave 2015-3-25
回答： Dave 2015-3-26
I know there are similar questions like that and have reviewed most, but don't quite have it figured out yet. As an example I have a file containing information similar to below: 07/03/2010 07:15 AM 'Run' 'Race' 4 'Mile' 10/24/2010 12:00 PM 'Run' 'Hill' 4 'Mile' 11/14/2010 09:30 AM 'Run' 'Easy' 4 'Mile' I would like to extract all those rows that say are of type 'Hill'.
I've tried the following: hill_log = runlog1(cat(1,runlog1{:,4}) == 'Hill',:)
but get: Undefined function 'eq' for input arguments of type 'cell'. No doubt some basic nuance I'm missing.
Thanks

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采纳的回答

Sean de Wolski
Sean de Wolski 2015-3-25
cat(1,runlog1{:,4})
This is a cell so you can't compare it to a string. Instead use strcmp which works on cells and strings in this manner. Something like:
strcmp(cat(1,runlog1{:,4}),'Hill')

更多回答（1 个）

Dave
Dave 2015-3-26
Still working on this a bit. I've tried the following and just get the 1st row with 'Hill'. hill_log = strcmp(runlog1{:,4}, 'Hill'); for i=1:length(hill_log); j=0; if hill_log(i)==1 j=j+1; hill_log_matrix(j,:) = runlog1(i,:) ; end end
I'm not a coder by trade, obviously, so any further hints would be appreciated.
TIA

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