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Re: st: smoothing quantiles
From
Nick Cox <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: smoothing quantiles
Date
Sat, 2 Apr 2011 08:13:00 +0100
One way of seeing what -hdquantile- does is, naturally, graphical.
sysuse auto
hdquantile mpg, gen(hdq_mpg)
qplot *mpg , c(. l) ms(Oh none)
where -qplot- is from SJ.
It seems curious to me that quantile smoothing is far less practised
than density estimation.
Nick
On Fri, Apr 1, 2011 at 5:50 PM, Nick cox <[email protected]> wrote:
> I implemented one method in -hdquantile- from SSC.
> On 1 Apr 2011, at 17:43, László Sándor <[email protected]> wrote:
>
>> Hi all,
>>
>> I would like to plot smooth predicted quantiles with Stata 11.2 on
>> Unix (console).
>>
>> My goal is to have something like what lowess is for the mean for the
>> yvar. Preferably, it would be nice to be able to plot multiple
>> quantiles in the same plot (e.g., all 3 quartiles). This would be a
>> useful way to summarize the distribution of a yvar across the values
>> of an xvar.
>>
>> I'd rather not reinvent the wheel on this one --- I hope there is
>> something like this already out there (or built in), only I could not
>> find it.
>>
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