[R] use of class variable in r as in Proc means of sas

[jim holtman]

Is this what you want:

> x
     zip     price
1  60000    567000
2  60001    478654
3  60004    485647
4  60001   2783958
5  60005  97845848
6  60006 378383478
7  60002 397895735
8  60001 487587575
9  60002    478848
10 60003  49847874
11 60004    467648
12 60005    567489
13 60006   4776746
14 60004   4843949
> tapply(x$price, x$zip, quantile, prob=c(0,.05,.1,.75,.9))
$`60000`
    0%     5%    10%    75%    90%
567000 567000 567000 567000 567000

$`60001`
         0%          5%         10%         75%         90%
   478654.0    709184.4    939714.8 245185766.5 390626851.6

$`60002`
       0%        5%       10%       75%       90%
   478848  20349692  40220537 298541513 358154046

$`60003`
      0%       5%      10%      75%      90%
49847874 49847874 49847874 49847874 49847874

$`60004`
       0%        5%       10%       75%       90%
 467648.0  469447.9  471247.8 2664798.0 3972288.6

$`60005`
      0%       5%      10%      75%      90%
  567489  5431407 10295325 73526258 88118012

$`60006`
       0%        5%       10%       75%       90%
  4776746  23457083  42137419 284981795 341022805


On Tue, Sep 22, 2009 at 5:51 AM, premmad <mtechprem at gmail.com> wrote:
>
> Hi,everyone i need to calculate quartile values of a variable grouped by the
> other variable .
> same as in aggregate function(only median,mean or functions is possible-i
> think so)
> Could you please help me to achieve the  same for other quartile
> values(5,10,25,75,90) as for median using aggregate.
> Thanks in advance.
> data :
> zip             price
> 60000   567000
> 60001   478654
> 60004      485647
> 60001      2783958
> 60005      97845848
> 60006      378383478
> 60002      397895735
> 60001      487587575
> 60002      478848
> 60003      49847874
> 60004      467648
> 60005       567489
> 60006       4776746
> 60004       4843949
> what i want i quartile values of price grouped by zip
> --
> View this message in context: http://www.nabble.com/use-of-class-variable-in-r-as-in-Proc-means-of-sas-tp25530654p25530654.html
> Sent from the R help mailing list archive at Nabble.com.
>
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> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?