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From |
natasha agarwal <agarwana2@googlemail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Programming Stata |

Date |
Wed, 17 Aug 2011 14:45:28 +0100 |

Yes! Search for 'unbalanced' in the link below http://www.cemmap.ac.uk/resources/imbens_wooldridge/lecture_6.pdf Natasha On Wed, Aug 17, 2011 at 1:12 PM, Austin Nichols <austinnichols@gmail.com> wrote: > natasha agarwal <agarwana2@googlemail.com> > Seriously? > Search for "balanced" in the first link provided: > http://stata.com/meeting/chicago11/materials/chi11_wooldridge.pdf > > On Wed, Aug 17, 2011 at 5:57 AM, natasha agarwal > <agarwana2@googlemail.com> wrote: >> Hi Austin, >> >> You are absolutely right. This has got to do with Woolridge's APE stuff. >> >> I had a look at the links you posted (thanks for that) and it has got >> me a little confused. >> >> Is the APE calculation meant only for balanced panel (as his data is balanced)? >> >> Thanks >> Natasha >> >> >> >> On Tue, Aug 16, 2011 at 3:57 PM, Austin Nichols <austinnichols@gmail.com> wrote: >>> natasha agarwal <agarwana2@googlemail.com>: >>> I am guessing this is related to Wooldridge's APE stuff: >>> http://stata.com/meeting/chicago11/materials/chi11_wooldridge.pdf >>> http://ideas.repec.org/p/boc/nsug08/17.html >>> http://stata.com/meeting/snasug08/abstracts.html#wooldridge >>> >>> I have some programs from 2007 or 2008 to calculate the APE, but I >>> never released them, as I was working on a large-grain parallelized >>> bootstrap to speed up the SE calculations that I never finished. I >>> guess I should revisit those programs, since there seems to be an >>> ongoing demand, but there is more than enough Stata code in >>> Wooldridge's presentations to help you write your own program for a >>> specific application. >>> >>> One thing--in your program below you put -xb- as an option to -gen- >>> when you mean -predict-. Whenever you write a -program-, start by >>> running the commands interactively first, to debug your code. >>> >>> On Tue, Aug 16, 2011 at 10:17 AM, Nick Cox <n.j.cox@durham.ac.uk> wrote: >>>> In addition to Neil's comments, >>>> >>>> 1. There is no obvious gain from writing this as a program. >>>> You might as well just run these commands in a do-file. Of course, this may be under development. >>>> >>>> 2. The line >>>> >>>> xtprobit expdum 'x', re >>>> >>>> will not work as the same character ' is used for both delimiters. You need >>>> >>>> xtprobit expdum `x', re >>>> >>>> Nick >>>> n.j.cox@durham.ac.uk >>>> >>>> Neil Shephard >>>> >>>> If you are going to write it as a program then you should save it as >>>> [filename].ado (not [filename].do as you are implying) and place it in >>>> one of your systems -adopath-'s (to see what these are simply type >>>> -adopath- in Stata. >>>> >>>> See [U] 16-18 for greater details on "Do-Files" (Chapter 16) >>>> "Ado-Files (Chapter 17) and "Programming Stata (Chapter 18). >>>> >>>> On 16 August 2011 13:41, natasha agarwal <agarwana2@googlemail.com> wrote: >>>> >>>>> I am trying to write and run a program in Stata. The program I define >>>>> is as follows and I save it in the do-file >>>>> >>>>> capture program drop fdi >>>>> program fdi, rclass >>>>> local x " lnvfdi mfdi" >>>>> xtprobit expdum 'x', re >>>>> gen double x1b1hat, xb >>>>> gen double scale = normalden(x1bhat1) >>>>> gen double pe1=scale*_b[lnvfdi] >>>>> summarize pe1, meanonly >>>>> return scalar ape1=r(mean) >>>>> drop x1b1hat scale pe1 >>>>> end >>>>> >>>>> When I type fdi, I get an error invalid file name. >>>>> >>>>> Can anyone please help me? > > * > * 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/ > * * 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**:**Re: st: Programming Stata***From:*natasha agarwal <agarwana2@googlemail.com>

**References**:**st: Programming Stata***From:*natasha agarwal <agarwana2@googlemail.com>

**Re: st: Programming Stata***From:*Neil Shephard <n.shephard@sheffield.ac.uk>

**RE: st: Programming Stata***From:*Nick Cox <n.j.cox@durham.ac.uk>

**Re: st: Programming Stata***From:*Austin Nichols <austinnichols@gmail.com>

**Re: st: Programming Stata***From:*natasha agarwal <agarwana2@googlemail.com>

**Re: st: Programming Stata***From:*Austin Nichols <austinnichols@gmail.com>

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