x <- rnorm(1e6); y <- log(x); # or logb(x) or log1p(x) w <- warnings(); print(object.size(w)); ## [1] 480 str(w); $ NaNs produced: language log(x) - attr(*, "dots")= list() - attr(*, "class")= chr "warnings"
y <- log2(x); # or log10(x) w <- warnings(); print(object.size(w)); ## [1] 8000536 str(w); ## List of 1 ## $ NaNs produced: language log(c(2.12082478659910, 1.40263187453398, 1.574125429 ## 83486, -0.816399069824751, 0.215940065840533, 1.20975177084379, -0.340287874362 ## 813, 0.117151537611550, ... ## - attr(*, "dots")= list() ## - attr(*, "class")= chr "warnings" Note also how long it takes to display and str() the warning. I have observed this on R v2.6.2 and R v2.7.0 (2008-02-11 r44432) on both WinXP and Linux. /Henrik ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
