On Jul 2, 2009, at 9:01 AM, Andriy Fetsun wrote:
Hi Guys,
It is very simple question, but I can't find the answer! Please help
me.
I use R and such simple function as length() doesn't work. The
result is
always 1 even if my data are more then 1 observations!
Do I have to load any additional library?
length(Ret_1)
[1] 1
Perhaps Ret_1 is not a vector? If Ret_1 is a data.frame with one
column then this would be expected behavior. It is a result of
data.frames really being lists. Perhaps you should try:
str(Ret_1) .... to see what sort of object you have created and
then perhaps,
nrow(Ret_1)
length
function (x) .Primitive("length")
If you type a function name you get the code or something informative
about where to find the code.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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