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Matt J
Posts:
4,996
Registered:
11/28/09


Re: Indexing Problem
Posted:
Jun 25, 2012 2:07 PM


"Michael " <mabowles@syr.edu> wrote in message <jsa8nn$3qm$1@newscl01ah.mathworks.com>... > > Which all work properly when I ask MATLAB what they are.. (e.g. SW = row vector of 1's and 0's, and likewise for NW and NE). Here's the messed up part... I can try > > all_counts(1,:)  this gives a 29by1 column of data (good!) ===============
I think you really meant to write all_counts(:,1). What you've written would have extracted a 1x8 row.
> all_counts(SW,:)  this gives all data from the Southwest source position (which is what I want) > > ...but when I try: > all_counts(NW,:) > I get: > Index exceeds matrix dimensions. > > What is going on here? =====================
Works fine for me
>> all_counts=rand(29,8); all_counts(NW,:)
ans =
0.2217 0.7962 0.8865 0.3909 0.3015 0.5830 0.0688 0.6718 0.1174 0.0987 0.0287 0.8314 0.7011 0.2518 0.3196 0.6951 0.0855 0.7212 0.5005 0.4168 0.1781 0.9827 0.7184 0.8444 0.8010 0.6538 0.0596 0.6280 0.9991 0.3439 0.5313 0.7805 0.9880 0.8055 0.8253 0.5479 0.1206 0.6959 0.9577 0.4735 0.0377 0.5767 0.0835 0.9427 0.5895 0.6999 0.2407 0.1527
I would doublecheck the size of all_counts or NW. If this is happening inside a function, use DBSTOP to halt execution where the error is occuring. Check the dimensions of everything at that moment.



