Hi everybody,
Hope your are not all on holyday because I've got a problem that is going to drive me crazy...
No comment on that sentence, but please use the subject line ....
I would like to remove some rows from a dataframe. The rows correspond to some specific indexes which I can get by looking at the name in the first column of my dataset. But I manage to get only the opposite of what I really want (function #1)
#Function#1: remove.func<-function(data){ Name<-as.character(data[,1]) indexZZ<-grep("ZZ",Name,value=FALSE) data<-data[indexZZ,] # give me what I don't want print(slide) }
#Function#2: remove.func<-function(data,Name){ Name<-as.character(data[,1]) indexZZ<-grep("ZZ",Name,value=FALSE) data<-data[!indexZZ,] #doesn't work, give an empty dataframe
Please read the manuals and learn how to index:
data <- data[-indexZZ,]
Uwe Ligges
print(slide) }
Thanks :|
Nolwenn Le Meur
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