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st: RE: assign infinite values to vector element
From
Nick Cox <[email protected]>
To
"'[email protected]'" <[email protected]>
Subject
st: RE: assign infinite values to vector element
Date
Tue, 15 Mar 2011 18:20:40 +0000
Numeric missing . counts as arbitrarily large and is what is assigned by Stata when your answer is indeterminate (e.g. if you divide by zero). You can assign it too, but otherwise neither Stata nor Mata has a notion of infinity as a value you can assign, so far as I know.
If you wish to work with either of these as an argument to something else, i.e. some action may depend on whether your infinity has positive or negative sign, then I think you need some work-around of your own, e.g. store a value as missing and separately store its sign as +1 or -1.
Nick
[email protected]
Alex Nobel
In Mata, I would like to assign a positive infinite of negative infinite value
to a vector element, something like (in R for example):
c[i,j] = Inf or c[i,j]= -Inf
Is this possible in Mata?
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