Hello, sum(data.frame(),na.rm=TRUE) still throws an Error, is this really the intended behavior?
> sum(data.frame()) Error in FUN(X[[1L]], ...) : only defined on a data frame with all numeric or complex variables > sum(data.frame(),na.rm=TRUE) Error in FUN(X[[1L]], ...) : only defined on a data frame with all numeric or complex variables The context is # x is a data frame generated from read.csv() # bins is an index for histogram bins stored in csv file. > sum(x[is.element(x$color,0:3),bins],na.rm=TRUE) Which works when is.element() returns any TRUE values. It would be nice if i could avoid coding this up this way... > sum(as.matrix(x[is.element(x$color,0:3)),bins],na.rm=TRUE) I'm just wondering if this is really the intended behavior, noting that > sum(matrix()) [1] NA > sum(matrix(),na.rm=TRUE) [1] 0 behave as i would have expected. [using R 2.5.1 under windows ] Thanks Jacob Colvin ______________________________________________ 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.
