Displaying 20 results from an estimated 3000 matches similar to: "Fwd: strptime() problem? - Resolved"
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 17
1
strptime() bug? And additional problem in package "tseries"
Hi all, I've got some problems with irts objects, one of which could be a bug:
1) Read a table with several columns from Postgres and the first column is 
Timestamp with timezone (this is OK). An extract is:
raincida$ts:
 [2039] "25/03/2000 22:00:00 UTC" "25/03/2000 23:00:00 UTC"
 [2041] "26/03/2000 00:00:00 UTC" "26/03/2000 01:00:00 UTC"
 [2043]
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
     
2005 Jun 15
2
ploting error
Hello!
I've tried to execute an R script that I used to use with older versions with 
no problem. In the scrip ,I try to create a series of plots in png format, 
and now there is an error (my actual verion is R2.0.1)
Error in title(main=main,sub=sub,xlab=xlab,ylab=ylab,...):
X11 font at size 14 could not be loaded
Perhaps I did something wrong with this new install?
Thanks and best
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
2005 Jul 07
2
about image() function in R and colors
Hi!
I've got a map in R imported from a GIS (GRASS) as a vector of factors.
So I've got 20 different levels in the map and I've created a vector of custom 
colors of exactly 20 colors in lenght.
I'm trying to use image()  (really plot.grassmeta() that call image()) to plot 
the map with those colors but it doesnt work and the colors are changed.
I would like that all points
2011 May 20
1
Multiple count if style "queries"
Dear List,
I am looking to calculate two things from my data frame and was after some advice. For the example below i want to know.
1. How many unique Orders/Families and Genera there are per eco-name
2. How many incidences are there for each Order/Family and Genus there are per eco-region
I have 650 econame.
I.e for Biak-Numfoor rain forests there are 2 orders, 2 families and two genera.
2011 Aug 22
3
Multiple regression in R - unstandardised coefficients are a different sign to standardised coefficients, is this correct?
Hello,
I have a statistical problem that I am using R for, but I am not making 
sense of the results. I am trying to use multiple regression to explore 
which variables (weather conditions) have the greater effect on a local 
atmospheric variable. The data is taken from a database that has 20391 data 
points (Z1).
A simplified version of the data I'm looking at is given below, but I have 
a
2009 Mar 31
3
labeling panels in lattice plots
I am using windows XP with R 2.8.1
I am generating a lattice plot of annual rain patterns using the following
function:
>  xyplot(rain.stats$min+ rain.stats$max + rain.stats$ave ~
rain.stats$month |rain.stats$year,
            lty = 1,  data = rain.stats,  type = c("l","l", "l"), col =
c("red", "blue", "green"), distribute.type =
2006 Jul 02
1
Calculation of lags
Hi,
If I have the follow situation:
A dependent variable (i.e. number of insects) that is affected by an 
independent variable (i.e. rain). The problem is that the measure of rain 
affect the population in other moment. So there exit a lag between the rain 
and the number of insects. Exist in R any tool to find what is this lag? 
Explain better.
Suppose that I have a linear relationship
2010 Feb 15
4
Separating columns, and sorting by rows
Dear anyone who knows more about R than me (so everyone). I have been bashing
my head on the keyboard all day trying to do something with my table.
I have some data, like so:
     yyyy-mm     Rainfall(mm)
1   1977-02        17.4
2   1977-03        34.0
3   1977-04        26.2
4   1977-05        42.6
5   1977-06        58.6
6   1977-07        23.2
7   1977-08        26.8
8   1977-09        48.4
9 
2004 Aug 12
2
error using daisy() in library(cluster). Bug?
Hi,
I'm using the cluster library to examine multivariate data.
The data come from a connection to a postgres database, and I did a short R 
script to do the analisys. With the cluster version included in R1.8.0, daisy 
worked well for my data, but now, when I call daisy, I obtain the following 
messages:
---------
Error in if (any(sx == 0)) { : missing value where TRUE/FALSE needed
In
2005 Jul 13
2
Monitoring
Is there any software that can be run in windows to monitor icecast mounts, ie, user count  etc..
I swear I seen one before but I can't remember where.
-=-=-=-=-=-=-=Ottawa Valley Weather-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Weather @ 2:20pm - Temp: 34.9?C - Humidity 29% - Wind: E @ 13 km/h
Baro: 996kPa Steady - Vis: 8km - Sky: --- - Weather:  Haze
Hourly Rain: 0.00mm - Daily Rain:
2009 Aug 20
5
help with regular expressions in R
I'm having trouble achieving the results I want using a regular expression.
I want to eliminate all characters that fall within square brackets as well
as the brackets themselves, returning an "". I'm not sure if it's R's use of
double slash escapes or something else that is tripping me up. If I only use
one slash I get
1: '\[' is an unrecognized escape in a
2010 Apr 24
2
barplot - offsetting individual bars
Hello,
I'm trying currently using barplot to summarize precipitation data.  So far
I've compiled total annual snow and rain accumulation in a table
(attached).  I've been successful at plotting it using the following code:
fig=barplot(t(Annual_Precip_table), horiz=TRUE, space=0, col=c("grey70",
"white"), axes=FALSE)
.
.
The result is a stacked barplot with total
2006 Sep 23
1
variance-covariance structure of random effects in lme
Dear R users,
I have a question about the patterned variance-covariance structure for the random effects in linear mixed effect model.
I am reading section 4.2.2 of "Mixed-Effects Models in S and S-Plus" by Jose Pinheiro and Douglas Bates.
There is an example of defining a compound symmetry variance-covariance structure for the random effects in a
split-plot experiment on varieties of
2010 Feb 14
1
how to delete a parameter from list after running negative binomial error
Hello everyone,
Sorry if my question is not clear, my first language is not English, but
Portuguese.
I am building a model for my data, using non-binomial error. I am having a
bit of a problem when updating the model to remove parameters that I no do
no autocorrelate with other variables (I have used a autocorrelation
function for this).
So my first model looks like this:
2010 Dec 09
2
RES: Barplot with "Independent" Lines Y axis
Oh sorry. An example say lots more than words. The data below, when
submitted to twoord.plot return the mentioned error. Rain are bars and Salt
lines, the bars appear and the error occurs with the salt data.
Point	Rain	Salt
Fev/03	365.6	13
Mar/03	235	18
Abr/03	115.1	18
Mai/03	47.4	18.75
Jun/03	112	15
Jul/03	156.8	17
Ago/03	66.1	15
Set/03	149.8	14
Out/03	167,1	11.5
Nov/03	269.3	17.5
Dez/03	283.7	
2011 Oct 21
1
How to create time series objects combining two vectors
I am new to R and trying to understand time series objects.
I have 2 vectors, one containing rainfall values  (lets call the vector
"rain") and the other the time/date in seconds (lets call it "time"). Is
there a method to create a time series object simply by giving the "rain"
and "time" vectors as inputs? Something in the line of:
time_series_object
2005 Jun 20
1
Media Player Buffering Issue
I just noticed something.  I'm using simplecast as my encoder.  If I put the first Mp3 option which is listed Mp3/Mp3Pro when I play the stream in Media Player it just buffers and buffers and doesn't play.
If I select the option Mp3 (ACM) Media Player works.
Why would this be?
-=-=-=-=-=-=-=Ottawa Valley Weather-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Weather @ 12:08am - Temp: