Thanks Jim. How does one search the help system for info on simple logic like this?
On Mon, Jul 13, 2009 at 6:59 AM, jim holtman<jholt...@gmail.com> wrote: > 1) X <- subset(A, (t < 1000) | (t > 1200)) > 2) X <- subset(A, (t > 1000) & (t < 1200)) > > On Mon, Jul 13, 2009 at 9:47 AM, Mark Knecht<markkne...@gmail.com> wrote: >> How would I write the two selections each in a single subset command? >> >> 1) Two non-overlapping time ranges I want to collect together - before >> 10AM and after noon. Should be an OR function: >> >> X = subset(A, t<1000) + subset(A, t>1200) >> >> 2) One range between two defined times like after 10AM and before >> noon. Should be an AND function: >> >> X1 = subset(A, t>1000) >> X = subset(X1, t<1200) >> >> Thanks, >> Mark >> >> P.S. - The help system seems very difficult for finding this sort of >> information! >> >> ______________________________________________ >> 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. >> > > > > -- > Jim Holtman > Cincinnati, OH > +1 513 646 9390 > > What is the problem that you are trying to solve? > ______________________________________________ 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.
