RE: st: RE: Changing -correlate- results

["louis boakye-yiadom" <louisby@hotmail.com>]

I've tried both the -egen- and -sort, stable- approaches; each gives me 
identical results after each execution of the do file. With -egen- the 
correlation coefficient is always 0.7498, and with -sort, stable-, the 
result is always 0.7608. I suppose the difference in the two results lies in 
how tied ranks are treated. Thank you all very much.

Louis





> From: "Scott Merryman" <smerryman@kc.rr.com>
>
> Tied values are randomized.  From the helpfile:
>
> "Note: ties in the sort index (i.e., identical sorting values) are broken 
> in
> an arbitrary (i.e., random) order, unless the stable option is specified."
>
> You might try:
>
> sort f1, stable
>
> sort f2, stable
>
> Hope this helps,
> Scott

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