On 08/01/2010 08:48 PM, thmsfuller...@gmail.com wrote:
Hi,
The following two 'df's should be the same, although their
constructions are different.
But they aren't the same.
df1 <- data.frame(X=c(1, 2, 3), Y=c(4, 5, 6))
df2 <- data.frame(X=1:3, Y=4:6)
identical(df1, df2)
yields FALSE
See
str(df1)
str(df2)
to see how they differ.
But the results of paste() are different.
I don't see this is explained in ?paste. Could you help me understand
why it is like this?
df=data.frame(X=c(1, 2, 3), Y=c(4, 5, 6))
df
X Y
1 1 4
2 2 5
3 3 6
paste(df)
[1] "c(1, 2, 3)" "c(4, 5, 6)"
df=data.frame(X=1:3, Y=4:6)
df
X Y
1 1 4
2 2 5
3 3 6
paste(df)
[1] "1:3" "4:6"
______________________________________________
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.
