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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: Indexing
Replies: 4   Last Post: Mar 7, 2013 2:24 PM

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Eric

Posts: 5
Registered: 9/7/12
Indexing
Posted: Mar 5, 2013 10:16 PM
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Hi,

I know I should be able to figure this out based on previous posts, but I still cannot find the correct solution. Within matrix A (nx1 matrix), I want to find the first instance that a value BW is 10 units less than BW--I'll call this value DROP. It is not a min or max value. I am just trying to index points on a force waveform so I can eventually integrate the area between points.

Specifically:
BW= 650;
DROP = BW-10;
[event1,ind1] = A(DROP,1);

Using this, I get an error 'Indexing cannot yield multiple results'.

I tried using find but all the values will be positive numbers.

Any suggestion is greatly appreciated.

Thanks,

Eric
Date Subject Author
3/5/13
Read Indexing
Eric
3/5/13
Read Re: Indexing
Derek Goring
3/6/13
Read Re: Indexing
dpb
3/7/13
Read Re: Indexing
Eric
3/7/13
Read Re: Indexing
dpb

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