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From |
Nick Cox <n.j.cox@durham.ac.uk> |

To |
"'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu> |

Subject |
st: RE: RE: RE: RE: Accessing to a subvector of vector like |

Date |
Mon, 6 Feb 2012 19:06:37 +0000 |

I think you've changed the question. Please show us the exact code you used and explain in what sense it is "not working". Otherwise my answer can only be a guess that you did something wrong. Nick n.j.cox@durham.ac.uk Nakelse, Tebila (AfricaRice) 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. Nakelse, Tebila (AfricaRice) Thank you Nick. It is okay. Nick Cox 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 n.j.cox@durham.ac.uk 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] ? * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**st: xtfevd***From:*Murat Genc <murat.genc@otago.ac.nz>

**st: RE: RE: RE: RE: RE: Accessing to a subvector of vector like***From:*"Nakelse, Tebila (AfricaRice)" <T.Nakelse@cgiar.org>

**References**:**Re: st: MIXLOGIT: marginal effects***From:*Maarten Buis <maartenlbuis@gmail.com>

**Re: st: MIXLOGIT: marginal effects***From:*Arne Risa Hole <arnehole@gmail.com>

**R: st: MIXLOGIT: marginal effects***From:*"Davide Castellani" <davide.castellani@unibg.it>

**st: Accessing to a subvector of vector like***From:*"Nakelse, Tebila (AfricaRice)" <T.Nakelse@cgiar.org>

**st: RE: Accessing to a subvector of vector like***From:*Nick Cox <n.j.cox@durham.ac.uk>

**st: RE: RE: Accessing to a subvector of vector like***From:*"Nakelse, Tebila (AfricaRice)" <T.Nakelse@cgiar.org>

**st: RE: RE: RE: Accessing to a subvector of vector like***From:*"Nakelse, Tebila (AfricaRice)" <T.Nakelse@cgiar.org>

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