Displaying 20 results from an estimated 5000 matches similar to: "R graphics"
2006 Mar 16
2
french secondary boxplot
bonjour,
i'm a mathematic teacher and i have a question for R-developers :
is it possible to have (in the future) a boxplot with whiskers from
the first decile to the ninth decile, as usual in secondary french
schools... by example : boxplot(serie,range=-1) for french boxplot ?
cordialement,
jean-pierre
lyc?e jean zay
orl?ans, france
http://mathazay.free.fr/spip/
2007 Oct 31
2
Don't understand write.csv default: Why is column name for column of row names blank?
I've always been frustrated that R never puts a label on the column name for
a column of row names. This is usually the "key" in a database table, and
it sure would be nice to carry a "key" name along with the data instead of
the field being blank. So, why is it a good idea for it to be blank?
?write.csv says this:
CSV files
By default there is no column
2007 Jun 12
3
Read Windows-like .INI files into R data structure?
I need to process some datasets where the configuration information was
stored in .INI-like files, i.e., text files with sections like this:
[Section1]
var1=value1
var2=value2
[Section2]
A=value3
B=value4
...
>From Google and other searches I haven't found any package, or function
within a package, that reads .INI files into an R list, or other data
structure.
Any suggestions, or
2005 Nov 02
2
RODBC and Excel: Wrong Data Type Assumed on Import
The first column in my Excel sheet has mostly numbers but I need to treat it
as character data:
> library(RODBC)
> channel <- odbcConnectExcel("U:/efg/lab/R/Plasmid/construct list.xls")
> plasmid <- sqlFetch(channel,"Sheet1", as.is=TRUE)
> odbcClose(channel)
> names(plasmid)
[1] "Plasmid Number" "Plasmid"
2006 Oct 23
3
Plotting Text on a graph
Hi,
I plotted 12 graphs on a page and output to a png file. I wanted to
have an overall title for all 12 graphs. What command can I use to do
this? Below is the code that plotted the 12 graphs in one page.
# FM10 by Month/ Export the plot to Wash2005FM10.png
png(file="Wash2005FM10.png",bg="white")
par(mfrow = c(3,4))
# Plot 12 Month of OFM10, FFM10
for(i in
2007 Jul 18
1
Can any one help me on format file data.
Hi all.
I'd like know what is the format file saved by Leica
Microsystems TCS SP2-AOBS equipped with a SP2-FCS2 Leica Microsystems
workstation its datas. Cause it save in *.fcs extention file but
ins't flow cytometry standart format file...
Tahnks Horacio.
2006 Nov 28
1
There exist a FCS package on R-languaje?
Hi all, excuse me by this elementary question. I wish to know if a
package in language R exists to analyze FCS (Fluorescence Correlation
Spectroscopy) datas. And, if it possible, in addition can read the
archives in raw format generated by the ConfoCor2 program.
Thanks Horacio.
****************************************************************************
Dr. Horacio Castellini
2007 Feb 08
1
Suggestion about "R equivalent of Splus peaks() function"
In 2004 there was this R-Help posting from Jan 2004:
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/33097.html
R equivalent of Splus peaks() function?
The peaks function there has worked well for me on a couple of projects, but
some code using "peaks" failed today, which had worked fine in the past.
I was looking for a peak in a test case that was a sine curve over one
2005 Aug 15
1
Anything like dir.choose (similar to file.choose) in R?
Does R have a dir.choose function?
I can use file.choose like this as a kludge to get something like a
dir.choose, but a real dir.choose would be better:
cat("Select one of files in directory to process:\n")
filename <- gsub("\\\\", "/", file.choose())
basepath <- dirname(filename)
Windows provides a lower-level SHBrowseForFolder function to create such
2005 Jul 14
2
Partek has Dunn-Sidak Multiple Test Correction. Is this the same/similar to any of R's p.adjust.methods?
The Partek package (www.partek.com) allows only two selections for Multiple
Test Correction: Bonferroni and Dunn-Sidak. Can anyone suggest why Partek
implemented Dunn-Sidak and not the other methods that R has? Is there any
particular advantage to the Dunn-Sidak method?
R knows about these methods (in R 2.1.1):
> p.adjust.methods
[1] "holm" "hochberg" "hommel"
2006 Aug 14
1
Help with workaround for: Function '`[`' is not in the derivatives table
# This works fine:
> a <- 1
> b <- 2
> c <- 3
> E <- expression(a * exp(b*X) + c)
> X <- c(0.5, 1.0, 2.0)
> eval(E)
[1] 5.718282 10.389056 57.598150
> D(E, "b")
a * (exp(b * X) * X)
> eval(D(E, "b"))
[1] 1.359141 7.389056 109.196300
# But if (a,b,c) are replaced with (A[1], A[2], A[3]), how can I get a
derivative
2004 Sep 15
1
lomb periodogram package
Hi,
Does anyone know the name of the package that
includes a function for computing the lomb periodogram on irregular
spaced ts data? I saw the package once ~ 1 month ago but cannot
find it now ...
,
Rich
2007 Nov 13
1
Discrimination of almost-random time series
Dear time-series specialist:
I've got some time series representing measurements from a physical
process, like atomic decay data. These time series look almost
random, but should hopefully be distinguishable as they were taken
under different conditions.
I am looking for statistical approaches that are sensitive enough to
discriminate between such series of measurements. Preferably, there
2008 Jul 17
3
Colours in R
Hi list,
I will help an person that will use some graphics of R in internet.
But this pearson want to specify the colours. This person want me to create
an pallete of colours like that:
Name of color - Code - Colour
White - 0xFFFFFF - color white (like an box with this color)
I know that is possible with R, but i don't know how.
Thanks for the advance.
Atenciosamente,
Leandro Lins
2005 Aug 03
3
red-black-green color palette?
I'm working on some heatmaps, and the person I'm working with would
prefer a red-black-green color palette (red denoting gene induction and
green denoting gene repression). Does such a palette exist already?
If not, is there an easy way to create one?
Thanks,
Jake
2005 May 04
3
Imputation
I have timeseries data for some factors, and some missing values are there in those factors, I want impute those missing values without disturbing the distribution of that factor, and maintaining the correlation with other factors. Pl. suggest me some imputation methods.
I tried some functions in R like aregImpute, transcan. After the imputation I am unable to retrive the data with imputed
2012 Jan 30
2
Help page of colors() : add a new example ?
Dear all,
May I suggest to add an example in the help page of the colors() function ?
The following code could be useful to easily choose any color from colors() :
## Millot G. (2011), p.71.
## Figure displaying all the 657 built-in color names of colors().
palette(colors())
tempo<-NULL
for(i in 14:1){tempo<-c(tempo, rep(i,50))}
windows(width=10) # replace by quartz(width=10) for MacOS and
2007 Feb 23
3
mixture of 2 normals - starting values
Hi,
I have a problem of estimating a mixture of two normal distributions. I
need to find the starting points automatically, since this is a part of a
larger piece of image processing code.
I found the mix2normal1 function in VGAM package that mentions a method of
finding starting values for mu1 and mu2 but refers the reader to a book by
Everitt and Hand. Unfortunately, I do not have an easy
2005 Feb 23
1
Problem saving logic regression result equation to disk file
I want to get some "simple" logic regression examples to work before
exploring a hard problem.
I can get results, but I'm having some problems using "cat" to save the
logic regression equation to a disk file.
Consider this:
# Simple Logic Regression Example
# efg, 23 Feb 2005
library(LogicReg)
# Create simulated data with known logic equation:
# "noise"
2007 Sep 27
1
R "capabilities" on a cluster node
R version 2.5.1 (2007-06-27)
I' running some simple R jobs via the Sun Grid Engine on our Linux cluster
in preparation for some bigger ones.
I checked R's capabilities on the cluster nodes (after failing to create a
png file) and am getting the following warning message:
[Run on a cluster node using qrsh:]
> capabilities()
jpeg png tcltk X11 http/ftp sockets