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-boun...@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.hs...@gmail.com > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@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. ______________________________________________ R-help@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.
