Re: st: Benford's Law

["Michael Levitan" <michael.levitan@villanova.edu>]

Many thanks to Nick, Svend and Al for their attention to this.

            Michael

Nick Winter wrote:

> One option:
>
> gen firstdigit = int( x / 10^int(log10(abs(x))) )
>
> This works for positive and negative numbers.  It generates missing 
> for x==0, and it generates 0 for -1<x<1.
>
> --Nick WInter
>
> At 09:23 AM 11/30/2005, you wrote:
>
>
> > Michael wrote:
> > Does anyone have an easy way to identify the leading digit for each
> > entry in a diverse data set other than a series of inequality filters?
> > --------------------------------------------------
> >
> > If you convert numbers to strings it is easy to identify the first
> > digit, as shown here:
> >
> > clear
> > set obs 100
> > gen x = int(1000*uniform())
> > gen str10 xstr = string(x , "%6.0f")
> > gen strx1 = substr(xstr,1,1)
> > destring strx1 , generate(x1)
> >
> > Hope this helps
> > Svend
> > __________________________________________
> >
> > Svend Juul
> > Institut for Folkesundhed, Afdeling for Epidemiologi
> > (Institute of Public Health, Department of Epidemiology)
> > Vennelyst Boulevard 6
> > DK-8000  Aarhus C, Denmark
> > Phone: +45 8942 6090
> > Home:  +45 8693 7796
> > Email: sj@soci.au.dk
> > __________________________________________
> >
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>
> ________________________________________________________
> Nicholas J. G. Winter                     607.255.8819 t
> Assistant Professor                       607.255.4530 f
> Department of Government              nw53@cornell.edu e
> Cornell University        falcon.arts.cornell.edu/nw53 w
> 308 White Hall
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>
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