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Re: st: rollreg


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: rollreg
Date   Mon, 16 Dec 2013 17:32:39 +0000

You are mixing different quote characters. Using -asciiplot- from SSC,
or otherwise, know that you should be using  char(39) consistently for
right quotes,
but some look like char(146) to me.

Nick
njcoxstata@gmail.com


On 16 December 2013 17:17, Timothy King <T.P.King@leeds.ac.uk> wrote:
> Dear Statalist,
>
> I am trying to run a rollreg example that performs a rolling regression for each company but get the error message:
>
> 'too few quotes'. I can't spot the source.
>
> The code is as follows:
>
> * rollreg by firm
> set more off
> webuse invest2, clear
> tsset company time
> rollreg market L(0/1).invest time, move(8) stub(mktM)
> local dv `r(depvar)'
> local rl `r(reglist)'
> local stub `r(stub)'
> local wantcoef invest
> local m "`r(rolloption)’(`r(rollobs)’)"
> forv i=1/4 {
> qui reg `dv' `rl' if company==`i'
> local cinv = _b[`wantcoef']
> tsline `stub'_`wantcoef' if company==`i' & `stub'_`wantcoef'<., ///
> ti("company `i'") yli(`cinv') yti("moving beta") ///
> name(comp `i’,replace) nodraw
> local all "`all' comp`i'"
> }
> graph combine `all’, ti("`m’ coefficient of `dv’ on `wantcoef’") ///
> ysize(4) xsize(4) col(2) ///
> t1("Full-sample coefficient displayed") saving("`wantcoef’.gph",replace)
>
> Thank you in advance,
>
> Tim
>
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