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RE: st: how to compare two skewed distributions, or calculate confidence intervals for quantiles of each?
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From |
"Nick Cox" <[email protected]> |
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To |
<[email protected]> |
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Subject |
RE: st: how to compare two skewed distributions, or calculate confidence intervals for quantiles of each? |
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Date |
Wed, 8 Mar 2006 21:23:14 -0000 |
-qqplot- sounds more direct to me. I am not clear
that predictors enter into the request.
Nick
[email protected]
Austin Nichols
> Sounds like you need -poisson- to me, but if you really want to
> compare quantiles, read -help qreg- and try, say, -bsqreg wait if
> simulated==0- to get standard errors on the median wait in real data,
> or -bsqreg wait simulated- to compare the median of the real data to
> the simulated data.
daniel waxman
> > I am trying to compare two populations with skewed
> distributions--queuing
> > times for real patients, and queuing times for simulated
> patients (the
> > output of a discrete event simulation program).
> >
> > I am most interested in comparing the 50th, 75th, 90th, and
> 95th percentiles
> > between the real and simulated patients, and am struggling
> with a way to
> > describe this.
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