Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.
|
|
Math Forum
»
Discussions
»
sci.math.*
»
sci.math.num-analysis
Notice: We are no longer accepting new posts, but the forums will continue to be readable.
Topic:
Binary or Logical Selection : Given an array A and a binary or logical vector S, how do I select the rows of A when S = 1 or True ?
Replies:
6
Last Post:
Sep 24, 2012 5:42 AM
|
 |
|
|
Re: Binary or Logical Selection : Given an array A and a binary or logical vector S, how do I select the rows of A when S = 1 or True ?
Posted:
Sep 23, 2012 4:02 AM
|
|
On Saturday, 22 September 2012 23:33:54 UTC+1, Gordon Sande wrote:
> > Let S be the set of indices you want. The you can talk about its > > entries as subscripted > > values. To get the rows of A you then needed subscripted subscripts. > > The question is where > > do you do the colapsing. S does the job!
Thanks - but how do I actually write this as a maths expression that will satisfy what the referee requires ? I am afraid I am a physicist, not a mathematician .... cheers, Beau
|
|
|
|