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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 14:52:46 +0100 |

In addition, This is the summary statistics for lfp.dta in the zip file link id: 1, 2, ..., 5663 n = 5663 period: 1, 2, ..., 5 T = 5 Delta(period) = 1 unit Span(period) = 5 periods (id*period uniquely identifies each observation) Distribution of T_i: min 5% 25% 50% 75% 95% max 5 5 5 5 5 5 5 Freq. Percent Cum. | Pattern ---------------------------+--------- 5663 100.00 100.00 | 11111 ---------------------------+--------- 5663 100.00 | XXXXX And below is the summary statistics for meap On Wed, Aug 17, 2011 at 2:45 PM, natasha agarwal <agarwana2@googlemail.com> wrote: > 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>

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

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