similar to: about demo

Displaying 20 results from an estimated 10000 matches similar to: "about demo"

2007 Jul 16
5
formula(CO2)
The formula attribute of the builtin CO2 dataset seems a bit strange: > formula(CO2) Plant ~ Type + Treatment + conc + uptake What is one supposed to do with that? Certainly its not suitable for input to lm and none of the examples in ?CO2 use the above.
2004 Dec 26
2
Prosodic/phonetic analysis with R
Hi Folks, I'm interested in looking (in a beginner's amateurish way) at prosodic/phonetic analysis of recorded speech. In particular I would want to use R to formulate and evaluate specific models. So I would like to ask R people for their recommendations for a program which would a) Take as input a sound file in one of the common formats (".wav", ".au") b)
2007 May 01
2
Simulation using parts of density function
Hi My simulation with the followin R code works perfectly: sim <- replicate(999, sum(exp(rgamma(rpois(1,2000), scale = 0.5, shape = 12)))) But now I do not want to have values in object "sim" exceeding 5'000'000, that means that I am just using the beginning of densitiy function gamma x < 15.4. Is there a possibility to modify my code in an easy way? Thanks for any help!
2005 May 11
7
bug in modulus operator %% (PR#7852)
The following can't be right, first rw2010: > 1 %% 0.001 [1] 0.001 Then rw2001: > 1 %% 0.001 [1] -2.081668e-17 > and the last seems about right. -- Kjetil Halvorsen. Peace is the most effective weapon of mass construction. -- Mahdi Elmandjra -- No virus found in this outgoing message. Checked by AVG Anti-Virus.
2007 Jun 15
3
[OT] 'gv' and fractional points
Hi Folks, This is off-topic R-wise, but it may be close to the heart of many R-users, so I think it may be the best place to ask! Users of 'gv' (the "front end" to ghostscript) will be aware of the little window which gives you the x-y coordinates (in points = 1/72 inch) of the position of the "cross-hair" mouse cursor. These coordinates are those of the corresponding
2006 Jun 30
5
median of gamma distribution
Doese anyone know a R function to find the median of a gamma distribution? [[alternative HTML version deleted]]
2007 Mar 23
3
distribution graph
I am looking for a way to produce a "distribution graph" as in the example: (http://cecsweb.dartmouth.edu/release1.1/datatools/dgraph.php?year=2003&geotype=STD_HRR&event=A01_DIS&eventtype=UTIL Anybody who can help? Christian von Plessen Department of Pulmonary Medicine Haukeland university hospital Bergen Norway
2005 Oct 22
4
Male and female symbols?
Does anyone have an idea of how one might plot male and female symbols on a graph using R? Thanks! .................................................................. George W. Gilchrist Email #1: gwgilc at wm.edu Department of Biology, Box 8795 Email #2: kitesci at cox.net College of William & Mary Phone: (757) 221-7751 Williamsburg, VA
2007 May 09
3
Allocating shelf space
Hi Folks, This is not an R question as such, though it may well have an R answer. (And, in any case, this community probably knows more about most things than most others ... indeed, has probably pondered this very question). I: Given a "catalogue" of hundreds of books, where each "entry" has author and title (or equivalent ID), and also Ia) The dimensions (thickness,
2005 Feb 26
2
R-help Time Series
Hi Folks, While I was browsing in the R-help archives yesterday, I got curious about the time series of the sizes of the monthly archives in MB. This turned out to have an unexpected feature or two, which I leave to readers to explore for themselves. I'm now wondering at what point in time we might expect to be receiving 1000MB/month (30+MB/day). It's not that far away, it seems, but
2002 Dec 17
4
Quick tip please!
I have two CSV files (exported from Excel), say file1 and file2. The have the same number of rows, and each has several columns, with names on the first line; and some of the columns in file1 are repeated in file2. Using the "foreign" package, I can read these in separately to dataframes say d1 and d2 with > d1<-read.csv("file1") >
2007 Feb 07
3
Sample Poisson Distribution
Hi, I'm completely new to R, I am all at sea with the interface and the confusing help files, so would appreciate some help to do a simple task. Need to present the mean and variance of 100 different samples of poisson distributions (N=1000, with fixed lambda) in a file in two columnns, and then produce histograms. So far I have figured out: > N <- 1000 > x <- rpois(N, 3.1) ,
2005 Sep 01
5
Multivariate Skew Normal distribution
> -----Original Message----- > From: r-help-bounces at stat.math.ethz.ch > [mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of Caio Lucidius > Naberezny Azevedo > Sent: 01 September 2005 12:09 > To: Help mailing list - R > Subject: [R] Multivariate Skew Normal distribution > > > Hi all, > > Could anyone tell me if there is any package (or function)
2005 Sep 16
1
column-binary data
I have a number of datasets that are multipunch column-binary format. Does anyone have any advice on how to read this into R? Thanks. David
2006 Aug 07
2
Backquote in R syntax
Hi Folks, Can someone satisfy my curiosity (well, at least about the following query!) Reading the draft proofs of an article I've been asked to look through, I find the typesetter has set what would normally be entered as source("xyz.R") or source('xyz.R') as source(`xyz.R') i.e. it has come out with an opening backquote, then xyz.R, then a closing forward
2006 Jul 10
2
Source code for R graphics devices
Hi Folks, I'm trying to locate the source code for a (typical) R graphics device, in order to study how it's done. The underlying reason is that I'm thinking of trying to create a graphics device for 'pic' (the diagram drawing component of [g]troff). I thought the xfig device would be a good place to look, since the format of an xfig file is similar in nature (though very
2006 Feb 03
5
pbinom with size argument 0 (PR#8560)
Full_Name: Uffe H?gsbro Thygesen Version: 2.2.0 OS: linux Submission from: (NULL) (130.226.135.250) Hello all. pbinom(q=0,size=0,prob=0.5) returns the value NaN. I had expected the result 1. In fact any value for q seems to give an NaN. Note that dbinom(x=0,size=0,prob=0.5) returns the value 1. Cheers, Uffe
2005 Sep 29
2
Select varying LS digits in long numbers?
Hi Folks, I'm trying to find a neat solution to an apparently simple problem, but one which turns out to be a bit more intricate and tricky than one might expect. Suppose I have numbers given to a large number of digits. For example 1234567021 where (though I don't know this beforehand) only the last 3 digits will be varying (and all 3 will vary). What I want is, give a vector x of
2005 Sep 15
4
Rd and guillemots
First of all, thanks to those who've set up R to work so smoothly with Miktex-- even a total Latex bunny like me got it to work instantly, so that for the first time I'm able to run my Rd files through the Latex side of RCMD CHECK. Now the question/buglet. One of my Rd files contains the following: \code{mlazy( <<objname1>>, <<objname2>>, <<etc>>)}
2004 Nov 16
5
CDs for R?
Hi Folks, I'm sure I'm speaking for more than a few (though possibly a minority) here. There's something of a hidden assumption that R users can readily download whatever they need from CRAN. Some of us are on narrow bandwidth dialup connections, so downloading large quantities of stuff is out of the question (e.g. at approx. 5min/MB, it would take over 2 days to download a single