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st: RE: RE: RE: Accessing to a subvector of vector like
From
"Nakelse, Tebila (AfricaRice)" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: RE: RE: RE: Accessing to a subvector of vector like
Date
Mon, 6 Feb 2012 17:51:20 +0000
Thank you Nick
I tried this solution. But it still not working.
I want to use expression(pnl_exp) in margins. But if I use this solution stata may not know whether this coefficients are from a estimation and may not use this information to compute the matrix of covariance for example.
Best regards
Tebila
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Nakelse, Tebila (AfricaRice)
Sent: Monday, February 06, 2012 6:12 PM
To: [email protected]
Subject: st: RE: RE: Accessing to a subvector of vector like
Thank you Nick. It is okay.
Tebila
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Nick Cox
Sent: Monday, February 06, 2012 5:20 PM
To: '[email protected]'
Subject: st: RE: Accessing to a subvector of vector like
Just copy to a regular vector first:
sysuse auto
gen gpm = 1 / mpg
regress gpm weight length displacement
. mat li e(b)
e(b)[1,4]
weight length displacement _cons
y1 .00001174 .00006458 5.517e-06 .00152916
. mat b = e(b)
. mat b1 = b[1, "weight".. "length"]
. mat li b1
b1[1,2]
weight length
y1 .00001174 .00006458
Nick
[email protected]
Nakelse, Tebila (AfricaRice)
I would like to access to a subvector of a vector like e(b) or e(V).
Stata allows to have et sub-element as _b[varname]. Is it possible to have _b[varlist] ?
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