If you data frame is called 'df' df$PRODUCTS[df$PRODUCTS > 70] <- NA
-- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O<http://maps.google.com/maps?f=q&hl=en&q=Curitiba,+Brazil&layer=&ie=UTF8&z=18&ll=-25.448315,-49.276916&spn=0.002054,0.005407&t=k&om=1> On 26/03/07, Sergio Della Franca <[EMAIL PROTECTED]> wrote: > > Dear R-Helpers, > > I want to substitute the contents of a variable under some contitions. > > I.e., I have this data set: > > YEAR PRODUCTS > 1 80 > 2 90 > 3 50 > 4 60 > 5 30 > > I want to perform this condition: > if products> 70 then products=NA else products=products. > > I'd like to achive the seguent result: > > YEAR PRODUCTS > 1 NA > 2 NA > 3 50 > 4 60 > 5 30 > How can i develop this? > > > Thank you in advance. > > > Sergio Della Franca > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > [[alternative HTML version deleted]]
______________________________________________ R-help@stat.math.ethz.ch 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.
