Can someone please explain the following behavior?
df1 and df2 are data.frames. Suppose I want a subset of the rows
(observations) using extraction, say just the first row. What I want to know
is why if df1 has just one column then df1[1,] returns a vector, whereas if
df2 has 2 or more columns then df2[1,] returns a data frame? Why is the
single column case different?
[[alternative HTML version deleted]]
______________________________________________
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.
