On 15.03.2012 22:48, Matthew Dowle wrote:
Anyone?
Is it intended that the first suffix can no longer be blank? Seems to be
caused by a bug fix to merge in R 2.15.0.
Right, the user is now protected against confusing himself by using
names that were not unique before the merge.
Uwe Ligges
$Rdevel --vanilla
DF1 = data.frame(a=1:3,b=4:6)
DF2 = data.frame(a=1:3,b=7:9)
merge(DF1,DF2,by="a",suffixes=c("",".1"))
Error in merge.data.frame(DF1, DF2, by = "a", suffixes = c("", ".1")) :
there is already a column named ‘b’
$R --vanilla
R version 2.14.2 (2012-02-29)
DF1 = data.frame(a=1:3,b=4:6)
DF2 = data.frame(a=1:3,b=7:9)
merge(DF1,DF2,by="a",suffixes=c("",".1"))
a b b.1
1 1 4 7
2 2 5 8
3 3 6 9
Matthew
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