similar to: superimpose density line over hist

>>>>> "Romain" == Romain Francois <[hidden email]> >>>>> on Tue, 13 Dec 2005 15:40:59 +0100 writes: ........ Romain> A few comments : Romain> - your code should be reproductible, otherwise it is useless. (that Romain> recommandation is on the posting guide) Romain> - that question is a top ten question

Hi! This is going to be a real newbie question, but I can't figure it out. I'm trying to plot densities of various functions of chi-square. A simple chi-square plot I can do with dchisq(). But e.g. chi.sq/degrees of freedom I only know how to do using density(rchisq()/df). For example: plot(1, type="n", xlab="", ylab="", xlim=c(0,2), ylim=c(0,7)) for (i

Dear R users and developpers, My question is adressed to both of you, so I choose R-help to post it. Are there any plans to jazz up the main R website : http://www.r-project.org The look it have now is the same for a long time and kind of sad compared to other statistical package's website. Of course, the comparison is not fair, since companies are paying web designers to draw lollipop

Hi, I have a couple of questions: * would it be possible to add more information on the history, for example the number of the command and a timestamp. With the number of command, one could do some stuff like in a terminal to recall a specific command : $ !45 and with the timestamp, one could imagine to ask for commands that were typed in a given interval of time. For example : R>

Hi, I'm trying to build a simple R package 'helloWorld' with just one function that prints 'hello World' on the C side. I agree that it is completely useless, but I just start mixing R and C. My C file is as follows : #include <stdio.h> void helloWorld() { printf("hello world !\n") ; } When I call it from R, here is what happens : R>

I'm sure I'm being stupid so flame away... R2.2.1 on Windoze (boohoo) latest updates of packages. I'm exploring a dataset (land) with three variables looking at an narrowly unbalanced two group (GROUP) ANCOVA of a randomised controlled trial analysing endpoint score (SFQ.LOCF.ENDPOINT) entering the baseline score (SFQ.BASELINE) as covariate and the following work fine: > res.same

Dear list I have a vector of values that allegedly have a chi-squared distribution. I want to create a plot that shows the values I have obtained, and the chi-squared distribution curve for the specified number of degrees of freedom to show what should have been obtained. At the moment I am plotting the values I have obtained as a histogram and somehow want to put on to this plot the

Hi R users This looks a simple question Is there any difference between between rnorm(1000,0,1) and running rnorm(500,0,1) twice in terms of outcome ? TM

I seem to remember reading somewhere about some style guide regarding R the number of comment characters (#) prior to the comment meaning something. Anyone know to what I'm referring? Where? ---------------------------------------------------------- SIGSIG -- signature too long (core dumped)

Dear r-list, I am trying to visually seperate the two main clusters of a dendrogram. The idea is to use: 'edgePar=list(lty=3)' for 'dend1[[1]]' and 'edgePar=list(lty=1)' for 'dend1[[2]]' I have not found a way to solve this. Any suggestions? Patrick hc <- hclust(dist(USArrests), "ave") (dend1 <- as.dendrogram(hc)) par(mfrow=c(2,2)) plot(dend1)

Dear R-help, This is my first R day. I want to ask some more beginner's questions. Q1. How can I obtain the covariance matrix for parameter estimates of a multiple regression? I checked ?lm but didn't get the information. Q2. How can I see the old graphs in the graph window? Q3. Can R plot animated graph? For example, I want to see the dynamic change of a 2D graph during a time

There is a problem with `rpois'. It does seem to take care about the order of the arguments. This is an example: > rpois(n=1,lambda=2) [1] 3 > rpois(lambda=2,n=1) [1] 2 0 It obviously uses the first argument as the number of samples to be drawn, which is wrong. I used Version 0.49 Beta (April 23, 1997). Fredrik

There is a problem with `rpois'. It does seem to take care about the order of the arguments. This is an example: > rpois(n=1,lambda=2) [1] 3 > rpois(lambda=2,n=1) [1] 2 0 It obviously uses the first argument as the number of samples to be drawn, which is wrong. I used Version 0.49 Beta (April 23, 1997). Fredrik

Does anyone have an idea of how to make a chart in R like the ones here that use a graphic: http://bigpicture.typepad.com/comments/images/slide1.gif

Folks, I was drawn to R, like many others, partly for the opportunity to draw nice, colorful graphs (occasionally ones with meaning, too :-) ). I am still quite a newbie to R. As such, I have been trying to understand the code for the graphics on the home page (the ones from the 2004 contest -- the dendrogram, the cluster plot with different coloured circles, etc.) I was wondering whether anyone

Dear All, I have a question on overlaying a filled.contour (e.g. on soil properties data) and contour (by elevation) in one graph. Both have the same z matrix dimension. I'm able to overlay both graph, but the plots dimension did not overlap well on the same plots. How can I have both filled.contour and contour on the same graph? The commands that I have written are as follows:

Bonjour, je travaille actuellement sur le logiciel R et mets en place des procédures d'analyse de données : sur des procédures de classification employant la commande dist(), je rencontre des problèmes de memoire : avec des data.frame d'environ 100 000 lignes j'obtiens le message d'erreur suivant : Error : cannot allocate vector of size 668 481 330 Ou une autre erreur souvent

Hello, Suppose I simulate 20 observations from the Poisson distribution with lambda = 4. I can summarize these values using table() and then feed that to barplot() for a graph. Problem: if there are empty categories (e.g. 0) or empty categories within the range of the data (e.g. observations for 6, 7, 9), barplot() does not include the empty cells in the x-axis of the plot. Is there any way to

hello, I have just started using R for doing a project in time series... unfortunately, I am having trouble using the read.table function for use in reading my data set. This is what I'm getting: I inputted: data <- read.table("D:/Oliver/Professional/Studies/Time Series Analysis/spdc2693.data", header = TRUE) I got: Error in file(file, "r") : unable to open connection

hello, I have just started using R for doing a project in time series... unfortunately, I am having trouble using the read.table function for use in reading my data set. This is what I'm getting: I inputted: data <- read.table("D:/Oliver/Professional/Studies/Time Series Analysis/spdc2693.data", header = TRUE) I got: Error in file(file, "r") : unable to open connection