Displaying 2 results from an estimated 2 matches for "courtelari".
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courtelary
2007 Apr 20
2
sorting data in R
hello,
I'd like know how to sort a data frame in R for example how I should do to sort by Catholic with swiss data frame like below
thanks
Fertility Agriculture Examination Education Catholic Infant.Mortality
Courtelary 80.2 17.0 15 12 9.96 22.2
Delemont 83.1 45.1 6 9 84.84 22.2
2007 Mar 14
0
cannot delete the last column of a dataframe using "[<-" (PR#9565)
Hi,
If df is a dataframe, its last column can't be deleted using "[<-", but
other columns can be deleted this way.
Example:
> (df <- df0 <- data.frame(x = 1:3, y = 4:6, z = 7:9))
x y z
1 1 4 7
2 2 5 8
3 3 6 9
> df[, "z"] <- NULL
Error in x[[jj]] : subscript out of bounds
> df[, 3] <- NULL
Error in x[[jj]] : subscript out of bounds
>