Try this: lapply(l, function(x)median(x[,sapply(x, is.numeric)]))
On Fri, Nov 7, 2008 at 8:42 AM, Ptit_Bleu <[EMAIL PROTECTED]> wrote: > > Hello, > > I have a list of data.frame > rowsplit : List of 15 > $ (0,0.025] :'data.frame': 169 obs. of 7 variables: > $ (0.025,0.05]:'data.frame': 174 obs. of 7 variables: > $ (0.05,0.075]:'data.frame': 92 obs. of 7 variables: > $ (0.075,0.1] :'data.frame': 76 obs. of 7 variables: > $ (0.1,0.125] :'data.frame': 37 obs. of 7 variables: > $ (0.125,0.15]:'data.frame': 32 obs. of 7 variables: > $ (0.15,0.175]:'data.frame': 45 obs. of 7 variables: > $ (0.175,0.2] :'data.frame': 56 obs. of 7 variables: > $ (0.2,0.225] :'data.frame': 36 obs. of 7 variables: > $ (0.225,0.25]:'data.frame': 47 obs. of 7 variables: > $ (0.25,0.275]:'data.frame': 34 obs. of 7 variables: > $ (0.275,0.3] :'data.frame': 43 obs. of 7 variables: > $ (0.3,0.325] :'data.frame': 29 obs. of 7 variables: > $ (0.325,0.35]:'data.frame': 29 obs. of 7 variables: > $ (0.35,0.375]:'data.frame': 17 obs. of 7 variables: > > And I would like to get a data.frame gathering the median value of each > variable for each intervall. > as.data.frame(t(sapply(rowsplit, mean)) works well but I would prefer to > use > median but with sapply(rowsplit, median), I get the following message > "Error > in median.default(X[[1L]], ...) : need numeric data". > > Any idea ? > > Thanks in advance for your help, > Have a nice week-end, > Ptit Bleu. > > PS :I'm under XP and use R2.7.2. > -- > View this message in context: > http://www.nabble.com/sapply-and-median%2C-possible-or-not---tp20378222p20378222.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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]
______________________________________________ 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.
