Am Donnerstag, den 06.03.2008, 17:47 +0100 schrieb Petr PIKAL: > Hi > > [EMAIL PROTECTED] napsal dne 06.03.2008 17:41:06: > > > Hi there, > > > > When i do > > > > mean(fl[1:20], na.rm=T) > > e.g. > > sum(!is.na(fl[1:20]))
This seems to give me a sum of all the items. But I'd like to have it per column. > mean(fl[1:20]) aids angststoer autismus bauchspduekrebs prostata -0.7474884 -1.0475500 -0.6267267 NA -1.7318179 fraudep manndep hautkrebs herzinfarkt leukaemie -1.2919841 -1.5124280 -0.3202036 -0.8246589 0.7550549 lungenkrebs manischdepresiv magenkrebs magersucht mannmagsucht -1.2451753 -1.9726160 1.4548394 -0.6242250 NA osteoporose panik schizophrenie schlaganfall zwangsstoer -1.7974270 NA -1.8634089 NA -1.5056106 > mean(fl[1:20], na.rm=T) aids angststoer autismus bauchspduekrebs prostata -0.7474884 -1.0475500 -0.6267267 1.2168804 -1.7318179 fraudep manndep hautkrebs herzinfarkt leukaemie -1.2919841 -1.5124280 -0.3202036 -0.8246589 0.7550549 lungenkrebs manischdepresiv magenkrebs magersucht mannmagsucht -1.2451753 -1.9726160 1.4548394 -0.6242250 -0.3765245 osteoporose panik schizophrenie schlaganfall zwangsstoer -1.7974270 -1.2328361 -1.8634089 -1.7165059 -1.5056106 > sum(!is.na(fl[1:20])) [1] 892 So I'd like to have it like the mean, to see how many data is calculated by na.rm=T per column? Thanks, Martin
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