[R] Odp: How can I appoint a small part of the whole data

[Petr PIKAL]

Hi

use any of suitable selection ways that are in R.

E.g.

data[data$gender==1, ]

selects only female values

data$wage[(data$gender==1)  & (data$race=1)] selects black female wages.

and see also ?subset

Regards
Petr

r-help-bounces at r-project.org napsal dne 03.09.2009 10:51:59:

> Dear all,
> 
> I have 1980~1990 eleven datas,
> every year have three variables,
> wage
> gender(1=female, 2=male)
> race(1=black, 2=white)
> 
> My original commands is:
> 
> fig2b<-reldist(y=mu1990$wage,yo=mu1980$wage,.......)
> 
> I have three questions:
> 1. If I want to appoint y=women's wage in 1990
>                                     yo=women's wage in 1980
> 2. If I want to appoint y=women's wage in 1990
>                                     yo=men's wage in 1990
> 3. If I want to appoint y=black women's wage in 1990
>                                     yo=white women's wage in 1990
> 
> How can I modify the commands?
> 
> All help highly appreciated.
> 
> Best,
> Yichih
> 
> 
> -- 
> Yichih Hsieh
> 
> e-mail : yichih.hsieh at gmail.com
> 
>    [[alternative HTML version deleted]]
> 
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