Displaying 20 results from an estimated 2000 matches similar to: "Adding labels to variables"
2001 Jun 29
3
Debian packages for R-1.3.0
I have installed the binary packages for Debian GNU/Linux release 2.3
(woody) in the U.S. mirror of the CRAN archive. They should propagate
to the main CRAN archive within a day and to the other mirrors within
two days.
These packages have been compiled with gcc-3.0 and g77-3.0. I believe
the testing distribution currently provides only a snapshot of
gcc-3.0, not the latest released version, so
2001 Jun 29
3
Debian packages for R-1.3.0
I have installed the binary packages for Debian GNU/Linux release 2.3
(woody) in the U.S. mirror of the CRAN archive. They should propagate
to the main CRAN archive within a day and to the other mirrors within
two days.
These packages have been compiled with gcc-3.0 and g77-3.0. I believe
the testing distribution currently provides only a snapshot of
gcc-3.0, not the latest released version, so
2006 Jun 07
2
Help with sample function
I have generated some some survival times and censoring indicators.
Thus I have an ordered pair for each observation. How do I sample these
ordered paris? I only know how to sample from a vector? I would
appreciate any help I could get.
Thanks
Matt
2003 Jan 13
2
Bug in boxplot(..., add=TRUE) ?
R 1.6.1 on Windows NT4:
The boxplot() function appears to draw its own tick marks
and axis values even when called with add=TRUE. As a toy
example, try
x <- rnorm(100)
f <- factor(rep(1:4, each=25))
plot(c(0,4), c(-3,3), type="n", xaxt="n", yaxt="n")
boxplot(x ~ f, add=TRUE)
My expectation is that a high-level plotting function will
not mess with the axes
2004 Oct 07
3
Read.Table Reading a Text file
Dear R users and Helpers
I am beginner with using R and interested in carrying out certain task for my statistical research.
I am reading data for a text file, which could contain data in following pattern
x y
8 10
11 14
16 16
18 15
6 20
4 4
20 18
As per the example I have two columns and 7 rows of data in each.
However is real life data situation I may not know how many columns are present
2002 Aug 29
8
lme() with known level-one variances
Greetings,
I have a meta-analysis problem in which I have fixed effects
regression coefficients (and estimated standard errors) from identical
models fit to different data sets. I would like to use these results
to create pooled estimated regression coefficients and estimated
standard errors for these pooled coefficients. In particular, I would
like to estimate the model
\beta_{i} = \mu +
2003 Oct 22
1
How to reformat data from database into data.frame?
I'm trying to find a clever way to re-map data from a database
query into a data.frame.
Querying a database often returns a table (data.frame) like this:
GeneID MethodID Value
6 1 123
6 2 456
6 3 987
7 1 234
7 3 432
8 2 190
8 3 34
8 1 864
Note that GeneID=7 doesn't have a value for MethodID=2.
Note that GeneID=8 doesn't have the
2008 Apr 18
5
show sum of textboxes
Hi all,
I have multiple textboxes containing numbers. I want to add up all the
numbers and show the sum. Can I select the textboxes by class and sum
the content?
This also has to happen realtime: when a number is changed ina textbox
the sum should also change.
can this be done?
regards,
Stijn
--~--~---------~--~----~------------~-------~--~----~
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2013 Jun 27
1
'modifyList' drops (not adds) NULL components
Dear list,
Utils::modifyList() drops NULL components in its second argument, instead of adding them to the first argument. Compare:
> modifyList(x=list(A=1), val=list(B=2, C=3))
$A
[1] 1
$B
[1] 2
$C
[1] 3
> modifyList(x=list(A=1), val=list(B=NULL, C=3))
$A
[1] 1
$C
[1] 3
To me this seems inconsistent with the documentation ("Elements in 'val' which are missing from
2018 Sep 11
1
var() with 0-length vector -- docs inconsistent with result
R 3.5.1 on Windows 7
The documentation for 'var' says: "These functions return 'NA' when there is only one observation (whereas S-PLUS has been returning 'NaN'), and fail if 'x' has length zero." The function 'sd' (based on 'var') has similar documentation.
However, I get:
var(numeric(0))
[1] NA
rather than an error.
Personally I
2003 Oct 18
2
Oceanographic lattice plots?
R 1.8.0 on Windows XP Professional. A huge THANK YOU to the R Team for
this marvelous software.
I am making lattice plots of oceanographic data. The usual layout does not
conform to plotting conventions that marine scientists use when depth is
the independent variable. Under those conventions, plots are made with the
origin at the upper left, depth on the vertical axis (increasing as it
2008 May 30
4
Request: Documentation of formulae
In working through material on p.272 of MASS (4th ed.), I came
across the following model formula:
pet1.lm <- lm(Y ~ No/EP - 1, Petrol)
I was at a loss to understand the use of "/" until I looked in
"An Introduction [!] to R," where I found the explanation.
My request is that more complete material on model formulae be
lifted from "Introduction to R" (or
2006 Apr 14
2
spot the error (I can''t, I''m new)
I have a form that I want to use to update multiple
objects. In the controller,
@grades = Grade.find(params[:grade].keys)
@grades.each_with_index do |grade, i|
grade.update_attribute(params[:grade][i])
end
all_valid = @grades.inject(true) {|memo, c|
c.valid? && memo }
this doesn''t update the attributes as I would expect.
(I would just use
2004 Jul 15
3
More on global environment
To follow up on my previous question, suppose a user R session wants to
unload one workspace and load another within an R session. Is the
following the correct sequence?
1. save.image() to save the current workspace as .Rdata in the current
working directory.
2. rm(list=ls()) to remove everything from the workspace.
3. setcwd("xxx") to set the new working directory.
4.
2007 Jan 24
4
Text position in Traditional Graphics
R 2.4.1 on Windows XP.
Question: In traditional graphics, is it possible to find out
the height of a line of text in units that can be used in
arithmetic and then in calls to text()?
Context: I have written a function that draws a plot and then,
depending on whether some arguments are TRUE or FALSE, draws
various lines of text in the plot. The text lines may be turned
on or off individually
2003 Aug 15
6
plot.lm mislabels points with na.exclude (PR#3750)
R 1.7.1 on Windows XP
The "normal Q-Q plot" produced by plot.lm() mislabels points
when the model is fitted using na.action=na.exclude. Example:
x <- 1:50
y <- x + rnorm(50)
y[c(5,10,15)] <- NA # insert some NA's
y[40] <- 50 # add an outlier
plot(lm(y ~ x, na.action=na.omit)) # outlier correctly labeled in all
# four plots
2005 Dec 20
4
Installing packages into updated R
A minor inconvenience in updating an R installation is remembering which
packages were installed previously. Has anyone written a script to
inspect a previous installation, then get & install the same packages
into the new installation?
--
Michael Prager
NOAA Center for Coastal Fisheries and Habitat Research
Beaufort, North Carolina 28516
Opinions expressed are personal, not official.
2008 Jul 18
3
Change font-face in title
Dear List,
Is there a possibility to change the font-face for a part of the title
of a plot?
For example I have the following...
plot(nirs, type="l", xlab="Wellenl?nge [nm]", col="darkslategray",
main = "Spektrum Deschampsia caespitosa")
...and I would like to change the part of the title-string "Deschampsia
caespitosa" to italics? Is
2004 Apr 27
3
R hang-up using lm
Dear R-helpers,
I have found a slightly annoying problem when trying to
plot lines on graphs. I first created my data using
tapply, thus:-
y1=as.vector(fit1$coef$random$id)
x1=tapply(o1,id,median,na.rm=T)
x2=tapply(o2,id,median,na.rm=T)
#then I plot the data, thus:-
plot(x1[x2==0],y[x2==0])
#if I now try to fit the linear regression, R 'hangs up'
2002 Dec 23
1
Plot scales
I remember reading somewhere that locations on plots (in my case, arguments
x and y for legend()) can be specified in several scales besides the usual
data scale. I would like to set x and y as proportions of total plot size
or something similar. Can anyone steer me to documentation on how to do it?
--
Michael Prager, Ph.D. <Mike.Prager at noaa.gov>
NOAA Center for