Re: [R] Counting dates in arbitrary ranges

2011-01-18 Thread Mike Marchywka
> From: simonjk...@yahoo.ca > Date: Tue, 18 Jan 2011 02:16:37 -0500 > To: r-help@r-project.org > Subject: [R] Counting dates in arbitrary ranges > > Dear Colleagues, > I have a data set that looks as below. I'd like to count

Re: [R] Counting dates in arbitrary ranges

2011-01-18 Thread Mauricio Zambrano
if you only want to count the number of days in an arbitrary time period, you may try: > install.packages("hydroTSM", dependencies=TRUE) > library(hydroTSM) > dip(from="2007-05-01", to="2009-09-10", out.type="nmbr") I hope this helps. Kinds, Mauricio -- === Linu

Re: [R] Counting dates in arbitrary ranges

2011-01-18 Thread Dennis Murphy
Hi: Perhaps you were looking for something like this: table(cut(mydata[[1]], breaks=seq(from = as.Date("2008-06-26"), to = as.Date("2009-06-26"), by = 'month'))) 2008-06-26 2008-07-26 2008-08-26 2008-09-26 2008-10-26 2008-11-26 2008-12-26

[R] Counting dates in arbitrary ranges

2011-01-18 Thread Simon Kiss
Dear Colleagues, I have a data set that looks as below. I'd like to count the number of dates in a series of arbitrary ranges (breaks) i.e. not pre-defined breaks such as months, quarters or years. table(format()) produces ideally formatted output, but table() does not appear to accept arbitrary