Dear all, I got another problem:
if education have five levels edu=1 edu=2 edu=3 edu=4 edu=5 If I want to appoint y=edu2~4 in 1990 which programs is correct? I tried this two programs, they both work, but two results is different. 1. fig2b<-reldist(y=mu1990$wage[mu1990$edu==2|3|4],......) 2. fig2b<-reldist(y=mu1990$wage[mu1990$edu%in%2:4],......) which one is correct? and why they have different results? All help high appreciated. best, Yichih 2009/9/5 Yichih Hsieh <yichih.hs...@gmail.com> > > 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 > -- 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.
