similar to: subsetting key on qqmath

Dear list, I'm plotting a lattice plot xyplot(Volume ~ Weight | as.character(DateTime)) where DateTime is a POSIXlt object. This produces strip labels in the format e.g. "2007-11-15 23:15:00" and panels are plotted in the correct order. I'd prefer a format "15 Nov 23:15", but if I use format(DateTime,format="%d %b %H:%M") to do the conversion, then the

Dear list, When I try to use lines.formula with subset and another argument I get an error. e.g. x<-1:5 y<-c(1,3,NA,2,5) plot(y~x, type="n") # set up frame lines(y~x, subset=!is.na(y)) # works OK lines(y~x, type="o", col="blue") # works OK # but lines(y~x, subset=!is.na(y), col="red") # gives an error: Error in if (length(x) == l) x[s] else x :

Full_Name: Steven McKinney Version: R 2.8.0 Patched svn rev 46845 OS: powerpc-apple-darwin9.5.0 Submission from: (NULL) (142.103.207.10) <<insert bug report here>> lines.formula() throws an error when subset argument is used but nothing is provided for data argument. Reproduce: x<-1:5 y<-c(1,3,NA,2,5) plot(y~x, type="n") # set up frame lines(y~x,

David, Duncan, > Hi > > Following on David's rate argument > > try (with modifications of pch and grid) > > rate <- 1/4 > shape = 8 > rate = c(rep(1/4,100),rep(1/3,100)) I don't think the problem is related to the rate argument, which can well be vectorized, as is the case for a number of arguments in distrib functions in R (note that you are redefining it

Hi, Don't have a clue what teh following error message generated by this function call: qqmath( ~val|ind,data = xx ,distribution = function(p){ qt(p,df=20)} ,ylab="Sample Quatinles" ,xlab="Theoretical Quantiles" ,panel=function(x,y) { panel.qqmathline(y , distribution=function(p) qt(p,df=20)

Does the 'groups' option on qqmath just color the points differently in the main distribution or does it actually overlay separate quantile plots for each subset? I would like to be able to do the latter. --Rich Richard Kittler AMD TDG 408-749-4099

Hello, I can't seem to make qqmath plot text. v <- rnorm(8) qqmath(~v) # this is ok, but qqmath(~v, panel=function(x, y) { points(x, y) text(0, 0, 'print me', cex=2)}) isn't ok. The axis frame is printed properly (ie, as in qqmath(~v)), but neither 'print me' nor the points show up on the graph. I can, however, see the upper half of the word 'me' in the

Hello ALL! Can anyone tell me how to specify qqmath() function with distribution qgamma? In help it is bit vague how to pass shape and scale parameters for gamma. Thank you in advance. Best, PM

Having solved this problem, I am posting this so that the next time I search for how to do this I will find an answer... Using qqmath(..., groups=num) creates a separate qq distribution for each group (within a panel). Using the 'col' or 'pch' argument does not (usually) work because panel.qqmath sorts the data (but not 'col' or 'pch') before plotting. Sorting

In qqmath, how would one go about having 'distribution' change with panel.number? I've tried set.seed(1) mydata <- data.frame(ind = factor(rep(2:4, each = 100))) mydata$val <- rt(300, df=rep(2:4, each = 100)) plot<-qqmath(~ val | ind, layout=c(3,1), data = mydata, prepanel = function(x, distribution, ...) {

The data are not normally distributed when untransformed and I'm trying various transformations to see if any would be appropriate to use. The lattice book (fig. 3.10) shows a 2-sample Q-Q plot with an abline but the code for the figure does not include the line. I'd appreciate a pointer to a reference on how to add an abline to a one-sample qqmath() plot in lattice. Rich

Hello, I would like to inlude the Q-Q plot by "qqmath" into a panel with other plots, say, using par(mfrow=c(1,2)). How can this be done given that "qqmath" refreshes the plotting window and there seems to be no series coming out of it? Thanks Serguei [[alternative HTML version deleted]]

Dear group, I tried to generate labels for every second tick in lattice (qqmath). Version: 0.14-16 Date: 2006/12/01 R version 2.4.1 (2006-12-18) An example: library(lattice) numy=100 y=runif(numy,min=0,max=1) sig=0.05 numsig=length(which(y<sig)) tck.no=11 # number of ticks tcks=1:tck.no labl=as.character(0.1*tcks-0.1) # label for all ticks labl[seq(2,tck.no-1,2)]="" # delete

I am using R-0.62.1 on FreeBSD-2.2.5. In R-0.61.3 I wrote the following R-script to produce postscript-output with logarithmic diagram: postscript("Test.PS", paper="a4", width=10.7, height=7.27, pointsize=10) plot(c(1:100), c(1:100), ann=FALSE, log="y", xlim=range(1:100), ylim=range(1:100)) lines(c(1:100), rep( 1,100), lty=2, col="Gray") lines(c(1:100),

I would like to make a new vector with values taken from two existing vectors conditional upon a third. At present I am doing this with a for loop but wonder if there is not a neater way, given some of the very neat things R can do. a<-rep(c("A","B"),50) b<-rep(1,100) c<-rep(2,100) a is thus "A" "B" "A" "B" "A"

This is the qqmath example from the lattice package. I added the scales to the example. I would like to switch the axis and not sure how? Meaning I would like the "height" on the x-axis and the probability on the y-axis. Will you show me the correct syntax for this switch thanks. qqmath(~ height | voice.part, aspect = "xy", data = singer, prepanel =

Dear collegues, Is there anyone who ever used qqmath(). Actually, I want to know the distribution of the dependent varible. It's a count number, so it should be poisson or negative binomial distribution. But how could I use R to get the ë and á? Or to demonstrate the distribution to be negative binomial ? I tried my best to find the examples by google, but failed. Thank you for the

One of many scripts to produce 4 lattice plots on one page keeps throwing an error. I've tried manipulating the file to eliminate the error, but have not been able to do so. The error is: > source('bicarb.R') Error in source("bicarb.R") : bicarb.R:15:1: unexpected symbol 14: 15: hco33 ^ The 'h' is in column 0 so the caret would be column -1, but it's

First my excuses if I keep bugging everyone in this list, but I am a newbie, and tend to find some behaviour that looks unexpected to me; and I would really appreciate to be pointed to some location that allows me to understand more about this software. Here is my next question: > par(mfrow=c(1,1)) > qqnorm(rnorm(20)) > qqmath(rnorm(20)) > par(mfrow=c(3,4)) > for(i in

Hello, I installed RGui 2.5.1 and package DBI on Windows XP and tried to connect to Oracle database which is on a Linux server. When I tried to use dbDriver("Oracle"), I got an error as follows: > drv <- dbDriver("Oracle") Error in do.call(as.character(drvName), list(...)) : could not find function "Oracle" > Could anyone tell me how