Length of data.frame column
Hi
I have a related question...I have a data frame similar with 74 rows
that I
created with "header=TRUE", but when I try to coerce one of the data
frame
columns into a vector, it shows up as having length 1, even though when
I
print it, it shows 74 elements:
VAL <- c(DailyDiary[1]) VAL [1] 3 3 3 2 3 3 4 4 3 3 2 1 1 4 3 3 2 3 3 2 2 3 3 3 1 2 2
[28] 1 1 3 3 3 2 4 3 2 3 4 3 3 3 3 4 3 2 3 2 3 1 2 1 2 3 1 [55] 0 3 2 4 3 1 2 3 1 1 1 4 3 2 1 2 3 3 3 2
length(VAL)
[1] 1
your VAL is still data frame. See ?"[" and link to data.frame method. Use str(object) to see the structure of your object not just printing it to console as print is a function which has also different methods for different objects and does not inform you about nature of your object. You shall profit from reading R-intro which I believe you have overlooked. It shall be installed in doc/manual directory of your R installation. Regards Petr
On the other hand, I can easily coerce the row names to a vector of
length
74
partf <- row.names(DailyDiary) length(partf)
[1] 74 What I would like to do is make VAL into a vector with length 74 instead
of
length 1 so I can sort it using use "partf" as factors. I tried "as.vector", but it doesn't let you specify the length. Any ideas?
Thanks,
and sorry if I'm being unclear or stupid, I'm a newbie :) Logan -- View this message in context: http://r.789695.n4.nabble.com/Length-of- data-frame-column-tp864585p3903892.html Sent from the R help mailing list archive at Nabble.com.
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