Displaying 20 results from an estimated 1000 matches similar to: "strptime() bug? And additional problem in package "tseries""
2004 Aug 17
3
Fwd: strptime() problem?
Hi all;
I've already send a similar e-mail to the list and Prof. Brian Ripley
answered me but my doubts remain unresolved. Thanks for the clarification,
but perhaps I wasn't clear enough in posting my questions.
I've got a postgres database which I read into R. The first column is
Timestamp with timezone, and my data are already in UTC format. An 'printed'
extract of R
2004 Aug 18
1
Fwd: strptime() problem? - Resolved
Hi Gabor and everybody;
Thanks Gabor, with the alternative step you've told me the problem is
resolved. Comparing the two procedures:
Extract from the source 'character' data:
> rain$ts[2039:2046]
[1] "25/03/2000 22:00:00 UTC" "25/03/2000 23:00:00 UTC"
[3] "26/03/2000 00:00:00 UTC" "26/03/2000 01:00:00 UTC"
[5] "26/03/2000 02:00:00
2015 Aug 04
2
Duda interpolación (package ' gstat ')
Hola,
# Hacemos el KED. Ver función "krige()":
KED.rad <- krige(
formula=pluvPcp~layer, # covariable -> radar
locations=lluvia.rad.pluv.spdf,
newdata=radarGrid, # podría ser cualquier objeto Spatial
model=v.fit, # modelo de semivariograma.
maxdist=Inf
2015 Aug 06
2
Duda interpolación (package ' gstat ')
Sale plano sí.
Ya se que sin tener los datos y el código es un poco difícil, pero es que mis datos ocupan mucho, es imposible.
Seguiré mirando por internet.
Muchas gracias Rubén.
Un saludo,
> To: r-help-es en r-project.org
> From: rubenfcasal en gmail.com
> Date: Thu, 6 Aug 2015 14:21:47 +0200
> Subject: Re: [R-es] Duda interpolación (package ' gstat ')
>
> Hola
2003 Mar 04
0
tseries contains a class for irregularly spaced time series
A new version of tseries (0.9-10) has been uploaded to CRAN. The new
version contains the class "irts" for irregularly spaced time series.
Irregular time series are basically time series where each observation
(uni- or multivariate) has a time-stamp represented by an object of
class "POSIXct". It provides some basic functionality such as reading
and writing irregular time
2003 Mar 04
0
tseries contains a class for irregularly spaced time series
A new version of tseries (0.9-10) has been uploaded to CRAN. The new
version contains the class "irts" for irregularly spaced time series.
Irregular time series are basically time series where each observation
(uni- or multivariate) has a time-stamp represented by an object of
class "POSIXct". It provides some basic functionality such as reading
and writing irregular time
2009 Aug 18
1
aggregating values at discreet irregular time intervals into hourly values
Hello R users,
I'm a newby to R (and programming software at large) and I would need some help to sum up event data at discreet time and irregular time interval into a hourly frequency.
Here is an example of my time series frame (irregular time-serie object - irts in the tseries package):
time value
2008-12-19 19:11:03 GMT 1
2008-12-19 19:12:00 GMT 0
2008-12-19
2003 Jun 06
3
irregular time-series
I make quite a lot of use of irregular time-series, and had already spent a
bit of time writing an 'its' class when the 'irts' class was released via
the package 'tseries'.
I have experimented with the 'irts' class, and have some practical issues
with its use. In some applications of irregular time-series (in my case
these are financial and econometric) there are
2011 Mar 24
2
Help with creating a ts (time series) object with daily sampling values
Hi All,
I have a data set of daily measurements of river flow. I would like to
create a "ts" object from this data.
Here's a sample data set:
date <- as.Date(c(1:300), format="%Y")
year=as.numeric(format(date, format = "%Y"))
month=as.numeric(format(date, format = "%m"))
julianday=as.numeric(format(date, format = "%j"))
2004 Jul 23
1
ts to irts
Hi R-list,
I'm working with irregular time series (time series of climate data,
daily data 365/6 days a year) and would like to create regular time
series from them ( irts
e.g. Rain <-
irts(as.POSIXct(Climate[,1]),Climate[,5])
to ts
e.g. test <- ts(x, start=c(1997,1), frequency=365) )
such that I can find where the gaps (lacking temperature data, ...) are
and try
2005 Dec 29
1
R and read.irts
I thought r-help let you
attach asci files but
I don't think it does now
so below is a sample of my data set.
Thanks again.
09:40:08.5238,67.00,33
09:40:09.1968,67.00,2
09:40:09.7945,67.00,2
09:40:09.7975,67.00,2
09:40:09.8318,66.99,-3
09:40:17.6335,66.95,3
09:41:09.3393,66.95,6
09:41:11.1482,66.95,-1
09:42:07.4552,66.90,-5
09:42:12.5823,66.85,-5
09:42:14.4329,66.80,-2
2004 Apr 30
1
daily time series in R
I have some daily data and would like to apply some of the time series functions to it.
I have read various notes in the help archive on this, the latest I found suggested
that I need to use the irts class (Irregularly spaced time series) for daily data
since a year does not divide into an integer number of days.
I see why I would have to do that if I have gaps (e.g. only data on weekdays)
but
2014 Sep 04
1
Merging Ogg streams whilst updating the Skeleton?
On Sun, 24 Aug 2014, Silvia Pfeiffer wrote:
> It's well possible there are bugs. I don't know when the code was last
> updated.
The last commit was in May, so it looks like it is being worked on...
I've gone ahead and raised three bugs, one for the offset, one for more
helpful error messaged, and one for subsequent streams of a given type
needing different roles+names.
2004 Aug 12
0
"new" package zoo 0.2-0
Dear useRs,
yet another "new" package: zoo 0.2-0.
zoo provides a simple S3 class and methods for totally
ordered indexed observations such as irregular time
series. Although there are other packages for irregular
time series available on CRAN (Giles Heywood's its
package and irts() in Adrian Trapletti's tseries package)
I wrote this package because I needed something which
2004 Aug 12
0
"new" package zoo 0.2-0
Dear useRs,
yet another "new" package: zoo 0.2-0.
zoo provides a simple S3 class and methods for totally
ordered indexed observations such as irregular time
series. Although there are other packages for irregular
time series available on CRAN (Giles Heywood's its
package and irts() in Adrian Trapletti's tseries package)
I wrote this package because I needed something which
2005 Dec 28
1
FW: R and read.irts
I have never worked with R before so I am
sorry if this is a bad question but I've
tried and tried ( all day ) and I can't figure this
problem out. I have the code below and I included the
data file as an attachment.
The code works in term of reading in the data
correctly but when the graph gets
created, the xaxis is really strangely/incorrectly
labelled. I have been trying
to understand
2010 Sep 06
2
dataframe row names from list
Hi,
I have a list which looks like this...
> str(y)
List of 10
$ : chr [1:4] "ABCD" "5" "0" "1"
$ : chr [1:4] "DEF" "15" "1" "16"
$ : chr [1:4] "AAA" "2" "17" "8"
$ : chr [1:4] "SSS" "15" "25" "1"
$ : chr [1:4] "III"
2009 May 25
1
Working with daily data
Hello
I have daily S&P 500 from 1950 for which I would like to do some time
series analysis in R. Could someone please show me an example of how to
create a ts/ irts object for my data? Additionally, how do I create
monthly subsamples of the data. I've experimented with the window
function but haven't had any luck.
Thank you
Ian
Confidential: This electronic message and
2011 Dec 07
2
problems when using dsync between servers
Hello,
I'm trying to migrate from maildir++ to mdbox. The maildir++ is a
leftover of our previous setup (was using courier)
We have 3 virtuals servers for our +70000 accounts.
Now, I'd like to use mdbox, so I'm trying using dsync for that. I setup
a new virtual server, configured for mdbox.
1st, I tried a basic setup: I established a file with all my accounts
(taken from LDAP)
2010 Jan 11
3
interpolation
Dear R-users,
I have a complex line by xy-values (ordered by z).
And I would like to get interpolated y-values on the positions of x = 0:600.
How do I get the correct points?
x=c(790,790,790,790,790,786,783,778,778,766,763,761,761,761,715,628,521,350,160,134,134,129,108,101,93,111,161,249,288,243,139,45,7)