Displaying 20 results from an estimated 3000 matches similar to: "Log or diary file"
2008 Sep 12
2
Greyed text in the background of a plot
Hi!
Is there any way of having a greyed ("ghosted") text
(i.e, 2006) in the background of a plot?
I'm making a dynamic plot and would like to show the
year of each time step as a big greyed text in the background.
(the idea comes from Hans Rosling video:
http://video.google.com/videoplay?docid=4237353244338529080&sourceid=searchfeed
)
Thanks
Agus
--
Dr. Agustin Lobo
Institut
2008 Jun 27
4
Recoding
Hi!
Given a vector (or a factor within a df),i.e. v1 <- c(1,1,1,2,3,4,1,10,3)
and a dictionary
cbind(c(1,2,3),c(1001,1002,1003))
is there a function (on the same line than recode() in car)
to get v2 as c(1001,1001,1001,1002,1003,4,1001,10,1003) ?
I'm using myself a function based on match() since
long ago (I think that thanks to advice by Prof. B. Ripley),
but would like to know if there
2007 Jul 24
1
Renamig a factor
Which is the proper way to rename a factor?
If I do:
test$Parc[test$Parc=="Ol?rdola"]<-"Ol?rdola"
R complains that
Warning message:
invalid factor level, NAs generated in: `[<-.factor`(`*tmp*`, test$Parc
== "Ol?rdola", value = "Ol?rdola")
Thanks
Agus
--
Dr. Agustin Lobo
Institut de Ciencies de la Terra "Jaume Almera" (CSIC)
LLuis Sole
2008 Apr 18
1
space between plots
I've set
layout(matrix(c(1,3,2,4),ncol=2))
and
par(mar=c(0, 4, 4, 0) + 0.0) and
par(mar=c(0, 0, 4, 3) + 0.0)
for the upper-left and upper-right plots, but
still get an space between both plots,
is there any way to completely eliminate that space?
Thanks
Agus
--
Dr. Agustin Lobo
Institut de Ciencies de la Terra "Jaume Almera" (CSIC)
LLuis Sole Sabaris s/n
08028 Barcelona
Spain
2009 Jul 03
4
Function to eliminate blank space within strings?
Is there an specific function
to eliminate blank space within
strings?
Thanks
--
Dr. Agustin Lobo
Institut de Ciencies de la Terra "Jaume Almera" (CSIC)
LLuis Sole Sabaris s/n
08028 Barcelona
Spain
Tel. 34 934095410
Fax. 34 934110012
email: Agustin.Lobo at ija.csic.es
http://www.ija.csic.es/gt/obster
2009 Sep 02
1
Problem at subsetting matrix by using dimnames
Given:
> mitest <- matrix(1:16,ncol=4)
> dimnames(mitest)[[1]] <- c("a","b","c","d")
> dimnames(mitest)[[2]] <- c("a","b","c","d")
> mitest
a b c d
a 1 5 9 13
b 2 6 10 14
c 3 7 11 15
d 4 8 12 16
I can do:
> mitest[cbind(c(1,2,3),c(2,3,2))]
[1] 5 10 7
but using the names does not
2008 May 21
2
Proportional axes
Hi!
If I'm plotting 2 variables with the same units
(i.e. wing length of 2 species), how can I force that X
and Y axes have the same size for length unit? For example, if
X ranges from 0 to 10 and Y ranges from 10 to 30, I want
Y axis to be twice as long as X axis. I know I can just
put xlim and ylim from 0 to 30, i.e.,
plot(runif(10,0,10),runif(10,10,30),xlim=c(0,30),ylim=c(0,30))
but this
2008 Jul 28
1
Converting from char to POSIX:
Given char vector delme2:
> str(delme2)
chr [1:1065] "30-1-08 8:48:21" "30-1-08 8:55:17" "30-1-08 9:00:22" ...
I do:
> delme3 <- strptime(delme2,format="%d-%m-%y %H:%M:%S")
But then:
> str(delme3)
POSIXlt[1:9], format: "2008-01-30 08:48:21" "2008-01-30 08:55:17" ...
> length(delme3)
[1] 9
whie
>
2009 May 12
2
ubuntu problem with 'r-cran-robustbase' [FWD Agustin Lobo]
Agustin, posted on R-help.
I think the problem is one of the debian/ubuntu package
'r-cran-robustbase' and its setup or (missing?) dependencies.
I can confirm Agustin's problem, working on Ubuntu 8.04.2
(8.04 is a "LTS" = long time support version).
apt-get install r-cran-robustbase
works fine, but when trying to load the package,
there's a DLL - dependency on
2007 Oct 26
2
cut.dendrogram and cutree
Hi!
In the example:
hc <- hclust(dist(USArrests), "ave")
dend1 <- as.dendrogram(hc)
dend2 <- cut(dend1, h=70)
Do the branches "Branch 1", "Branch 2", "Branch 2"...in dend2$upper
str(dend2$upper)
--[dendrogram w/ 2 branches and 4 members at h = 152]
|--[dendrogram w/ 2 branches and 2 members at h = 77.6]
| |--leaf "Branch 1" (h=
2008 Jun 24
2
subscripting in data frames with NA
Dear list:
Given
> str(b3)
'data.frame': 159 obs. of 6 variables:
$ index_pollution : num 8.228 10.513 0.549 0.915 10.416 ...
$ position_descrip: chr "2" "2" "2" NA ...
$ position_geo : chr "3" "0" "3" "3" ...
$ institution : Factor w/ 3 levels "digesa","mem",..: 3 3 3 3 3 3
2011 Aug 24
1
as.numeric() and POSIXct format
Hi!
I'm confused by this:
> as.numeric(as.POSIXct(518400,origin="2001-01-01"))
[1] 978822000
I guess the problem is that as.numeric() assumes a different origin, but cannot find
any default origin.
How can I get back the seconds from the POSIXct format? In other words, which
the inverse function of as.POSIXct()?
I've tried as.numeric and unclass() using a origin=
2009 Mar 08
2
prcomp(X,center=F) ??
I do not understand, from a PCA point of view, the option center=F
of prcomp()
According to the help page, the calculation in prcomp() "is done by a
singular value decomposition of the (centered and possibly scaled) data
matrix, not by using eigen on the covariance matrix" (as it's done by
princomp()) .
"This is generally the preferred method for numerical accuracy"
2009 May 12
2
[Fwd: Re: ubuntu problem with 'r-cran-robustbase' [FWD Agustin Lobo]]
Subject: Re: [R-sig-Debian] ubuntu problem with 'r-cran-robustbase' [FWD
Agustin Lobo]
Date: Tue, 12 May 2009 13:30:49 +0200
From: Agustin Lobo <aloboaleu at gmail.com>
Reply-To: aloboaleu at gmail.com
To: Dirk Eddelbuettel <edd at debian.org>
CC: Martin Maechler <maechler at stat.math.ethz.ch>,
R-SIG-Debian at stat.math.ethz.ch
References: <18953.17704.527898.355877
2011 Sep 16
1
cutree() and rect.hclust(): different labelling of classes
I've found that while cutree() and rect.hclust() make the same classes
for a given height in the dendrogram, the actual labeling of the classes
is different. For example, both produce the same 4 classes but
class 1 according to cutree() is class 4 according to rect.hclust().
Would it be possible that future versions provide the same labeling?
rect.hclust() is useful to display the classes
2013 Feb 28
1
query labels in iplot() (or other interactive scatterplot)
By Ctr-moving the cursor over a point in an iplot() scatterplot
(package iplots) it is possible to check the exact x,y coordinates
of a given point. Is it possible to check a text label for that point
as well? (i.e., the same info that would get printed on the graphic
using text(x,y, labels=v)
or with identify(x,y,labels), but I do not want to get the labels
permanently plotted on the graphic)
2012 May 28
2
zoo: variable gets modified at making zoo object
I'm doing:
> alyL32007z <- zoo(alyL32007,alyL32007$time)
> range(time(alyL32007z))
[1] "2007-01-01 00:00:00 UTC" "2007-12-31 23:30:00 UTC"
But then, while the original variable is:
> summary(alyL32007$NEE_st)
Min. 1st Qu. Median Mean 3rd Qu. Max. NA's
-15.340 -1.615 -0.054 -0.814 0.750 8.965 11124
the variable within the zoo object
2012 Jun 08
3
day of the year for chron objects
Hi!
Is not there an standard R function to retrieve the day of the year
(since 1st Jan of the same year)?
I know I can make my own using julian, but find it weird that having
days(), months() etc doy() does not exist as an standard function.
Also, is the following not a bit inconsistent?
> a <- chron("20100506",format="ymd")
> a
[1] 100506
> years(a)
[1] 2010
2004 Feb 11
1
Bhat: installation problem
Hi!
I'm trying to install package Bhat on
a Win machine, had a problem and figured out
a fix, but would like to report the
problem and make sure the fix is correct. This is what I do:
1. Download Bhat_0.9-07.tar.gz
2. Uncompress it and compress it back to Bhat_0.9-07.zip
3. Install from the R windows gui (that
apparentely requires the zip compression and cannot
deal with the tar.gz)
But
2008 Jun 18
1
reformatting R scripts for htmlize()
Hi!
I have a bunch of (mainly class) R scripts that I would
like to convert into html pages (although if someone
thinks that what I want to do is easier with latex or pdf,
please tell me).
Considering the format of my files, htmlize() seems the best
option. The only problem is that I would need
to write graphics to a file, thus
converting parts like:
plot(sel$hora, sel$COD_SP_C)
#and check the