Dear Petr, your suggestion is useful
many thanks for your help ! best, Yichih 2009/9/3 Petr PIKAL <petr.pi...@precheza.cz> > 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<http://www.r-project.org/posting-guide.html> > > and provide commented, minimal, self-contained, reproducible code. > > -- 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.
