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Re: st: reading value labels -- second and third largest values
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: reading value labels -- second and third largest values
Date
Wed, 5 Dec 2012 08:38:58 +0000
No and no.
I suggest you look inside the code.
gen touse = !missing(varname)
bysort touse group (varname) : gen highest = (_n >= _N - 2) & touse
tags the 3 highest values of -varname-, separately within groups of -group-.
after which you can -list- them or use them.
Nick
On Wed, Dec 5, 2012 at 8:21 AM, Jakob Pohlisch <[email protected]> wrote:
> Hello Nick,
>
> thanks for your quick answer! Is there any already build-in way to extract
> those values or will i have to manipulate your command to do so?
>
> Jakob
>
> Am 05.12.12 08:59, schrieb Nick Cox:
>>
>> On #1, you will find some technique in the code for -extremes- (SSC).
>>
>> Nick
>>
>> On Tue, Dec 4, 2012 at 10:29 PM, Jakob Pohlisch <[email protected]> wrote:
>>
>>> 1. The command summarize is computing the 4 largest and smallest values.
>>> Unfortunately the command is not storing them for the reason that it is a
>>> build in command i cannot manipulate it to do so. To get this values from
>>> a
>>> dataset is not that hard. i would just sort the values and take the
>>> values
>>> of the observations _N, _N-1 and so on. But if i would like to use the
>>> bysort "command" i would have to get the values of "subsamples" of my
>>> datatset. This is not to hard if i use the preserve and restore commands.
>>> But these commands unfortunately are VERY time-consuming. I have really
>>> big
>>> datasets on hand and would like to obtain those values without the
>>> preserve
>>> and restore commands. Any idea?
>>
>> *
>>
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>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/faqs/resources/statalist-faq/
>> * http://www.ats.ucla.edu/stat/stata/
>
>
> *
> * For searches and help try:
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> * http://www.ats.ucla.edu/stat/stata/
*
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