Displaying 5 results from an estimated 5 matches similar to: "plotting time"
2013 Mar 21
1
All unique combinations
Dear all,
I would like to have all unique combinations in the following matrix
TimeIndex<- rbind (c(1,"Week_of_21_07-29_03"),
c(2,"Thursday_21_03"),
c(3,"Friday_22_03"),
c(4,"Saturday_23_03"),
c(5,"Sunday_24_03"),
c(6,"Monday_25_03"),
c(7,"Tuesday_26_03"),
2011 Sep 22
2
the opposite of lag() in panel data
Hi R-helpers
I want a function that performs the opposite of lag() with panel data.
I have transformed my data before with pdata.frame(mydata,
index=c("groupindex", “timeindex"))
And then I’ve done lag(mydata, -1) but it doesn’t work.
The error message was:
Error in rep(1, ak) : invalid ''times'' argument
Thank you in advance,
Cecília Carmo
2009 Aug 12
1
CCF for hourly time series?
Hello,
I have a dataframe containing various time series (not time series objects though!)with hourly time steps. I?d like to perform ccf for I need to know the correlation factors for different lags.
Here is an example:
x<-as.POSIXct(c("2008-12-25 16:00:00", "2008-12-25 17:00:00", "2008-12-25 18:00:00", "2008-12-25 19:00:00", "2008-12-25
2010 Jun 08
2
Extract/format/show for S4 objects
Hi all,
I'm trying to make an integer-backed quarter (as in fraction of year)
class, but I can't quite it to work. I want integer-backed so I don't
have to worry about floating-point effects when doing math, and so that
I can use it as in data.table.
First of all, is there a good reference for this anywhere? All of the
S4 tutorials that I've found have been too high-level, and
2008 Jan 14
1
Problems with forms
hello all
i''m a newbie on mechanize, but already had some success.
But now i''m in a real problem :
The following HTML-Code is not parsed corect, not all form element are
found. I''can''t change the server-code.
How to fix ?
HTML-Site
------X-----------------------------------------------------------------------X-
<!DOCTYPE HTML PUBLIC "-//W3C//DTD