R help - Sep 2009 - How can I appoint a small part of the whole data

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@gmail.com

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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]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

Dear Mark,

many thanks for your suggestions !


best,
yichih


-- 
Yichih Hsieh

e-mail : yichih.hsieh@gmail.com

	[[alternative HTML version deleted]]