Dear Erik Wright,
Re: > Could someone please explain this R behavior to me: > >> typeof(as.numeric(1:10)) > [1] "double" >> typeof(as(1:10, "numeric")) > [1] "integer" > > I expected "double" in both cases. In the help for the "as" function it says: > > "Methods are pre-defined for coercing any object to one of the basic > datatypes. For example, as(x, "numeric") uses the existing as.numeric > function." This happens because 1:10 yields only integers, and so can be stored cheap, whereas as.numeric() actually means: as.double. The "numeric" in the second line is an unused argument. Best regards, Frank --- Franklin Bretschneider Dept of Biology Utrecht University brets...@xs4all.nl ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
