Hi x<-rnorm(20) max(x[x<=0]) [1] -0.1028260 x<-c(x,0)
max(x[x<=0]) min(x[x>=0]) AFAIK there is no other number fulfilling both criteria other than zero. So if you want both criteria to be true (as your "and" suggests), just check if there is zero. Regards Petr r-help-boun...@r-project.org napsal dne 08.12.2010 09:52:55: > > so it could be zero in both cases when given column has 0 set in it > -- > View this message in context: http://r.789695.n4.nabble.com/how-to-find- > smallest-non-negative-and-biggest-non-positive-number-in-a-matrix-column- > tp3077870p3077870.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.
