Displaying 3 results from an estimated 3 matches for "manipluations".
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manipluation
2007 Sep 14
2
Date vs date
I wrote the date package long ago, and it has been useful. In my current task
of reunifying the R (Tom Lumley) and Splus (me) code trees for survival, I'm
removing the explicit dependence on 'date' objects from the expected survival
routines so that they better integrate. Comparison of 'date' to 'Date' has
raised a couple of questions.
Clearly Date is more
2006 Dec 10
1
using zoo for daily stock prices
Hi all,
Please forgive this newbie posting to the list for the first time if I
haven't followed proper procedure. I have read through many of the archives
and find them most useful in learning R.
I have ten years daily data (stock closing prices) which I read in zoo
format. I am having problems coding R to run a count of how many days in
each month have a price higher than the first day
2013 Jun 19
3
how to get growth rate of a (time series) data?
Hello all, now I'm trying to switch from Excel to R to deal with the data,
and as a newbie i got the problem as follows.
suppose I have a data named "test"
test<- data.frame(year=c(1996:2011),
Y=c(74163.6,81658.5,86531.6,91125.0,98749.0,109028.0,120475.6,136613.4,160956.6,187423.5,222712.5,266599.2,315974.6,348775.1,402816.5,465731.3))
in which Y means the GDP of a country
If i