similar to: switching y-axis to x-axis for qqmath

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, ...) {

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

Hello, I'm Giovanni from ROMA.. I can't find a solution for the error: "error using packet 1 the y field is not specified and it has not a default value" (this is my traslation from italian language) The code is: pc<- qqmath(~valori, distribution=function(p) qweibull(p,beta,alpha), prepanel = prepanel.qqmathline, panel = function(x, y) {

Hello, I'm Giovanni from ROMA.. I can't find a solution for the error: "error using packet 1 the y field is not specified and it has not a default value" (this is my traslation from italian language) The code is: pc<- qqmath(~valori, distribution=function(p) qweibull(p,beta,alpha), prepanel = prepanel.qqmathline, panel = function(x, y) {

I have been crashing R while using lattice. My system consists of a Mac Intel, R 2.5.1, lattice 0.15-5, and I plot through the default quartz. R crashes after plotting several lattice functions. Has anyone else encountered this problem and does anyone know the cause, or a solution? Is this a lattice:mac, lattice:quartz, Lattice:me issue? example... This crashes my system after plotting.

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

Dear R helpers, I generate a qq plot using the following function call. qqmath(~val|ind,data=xx ,distribution=function(p) qt(p,df=19) ,ylab="Sample Quatinles" ,xlab="Theoretical Quantiles" ,aspect=1 ,prepanel = prepanel.qqmathline ,panel=function(x,y) { panel.qqmathline(y, distribution=function(p) qt(p,df=19),col=2)

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)

Dear R users: How can I use panel.qqmathline, in package lattice, to add straight lines onto the plots generated by qqmath? I read help pages of qqmath, panel.qqmathline, xyplot, ..., but just can't one example that shows how to make it work. For example, > data(sleep) > qqnorm(~ extra | group, data=sleep, aspect=1) how can I use panel.qqmathline? Thanks very much for your help,

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 create a lot of plots with a dollar amount as the y-axis. How do I change the formatting so comma and $ are in place. Like $1000,000 or to use common dollar abbreviations like 100K? Chris Anderson Data Analyst Medical Affairs wk: 925-677-4870 cell: 707-315-8486 Fax:925-677-4670 This electronic message transmission, including any attachments, contains information which may be confidential,

I am trying to create multiple dataset by group like the following using either a loop or vectorization: vocallGp1<-subset(vocallsub, Group==1) vocallGp2<-subset(vocallsub, Group==2) vocallGp3<-subset(vocallsub, Group==3) vocallGp4<-subset(vocallsub, Group==4) vocallGp5<-subset(vocallsub, Group==5) When I create the loop I get the following error:

I'm trying to display my deciles without scientific notation, but have not found an option that will allow me to do so. According to web searches, the options(scipen=999) should remove scientific notation, but it seems not too. Does this option work with quantcut function? Is there any other option that can be used? I am using verison 2.10.0. library(gtools) library(gdata)

I'm using the following code to create quartile intervals of my dataset and it is working like it is suppose too. In my final output of the data I would like currency amounts to be displayed with commas. I have not found an option either through FormatC or sprintf that will display the data with commas, they only seem to add decimals. Is there a format that will display commas without me

I notice that R basic installation does not take advantage of multi-thread or multi-core processors. Is there an option for multi-threaded processors? I currently run all of my analysis on thinkpad laptop and most processing is very quick, however, when I run stepAIC with interaction terms it can take a couple of hours to complete. I have tried running the same process and a quad core machine 64

I have a process where I am creating a effects plot similar to the cowles effect example. I would like to add the point estimates to the effects plot, can someone show me the correct syntax. I have included the "R" effects example, so you can show me the correct syntax. Thanks mod.cowles <- glm(volunteer ~ sex + neuroticism*extraversion, data=Cowles, family=binomial)

I have plotted the dataset below into a stripchart, which gives me the correct graph. However, my x-axis labels are to long to display hortizonal. I would like to display the labels at a 45 degree angle so that all of the labels are displayed. I have used the following text+par code on other graphs and it seems to work fine, but it does not seem to be working on here. I notice when I output the

I am using the R plug-in for spss 18, and would like to know if there is any R code that will highlight and bold rows (particularly the "Totals" row) within an spss table. The current option that spss has is to use a python plug-in which doesn't seem to work on my windows 7 machine. Chris Anderson Data Analyst Medical Affairs wk: 925-677-4870 cell: 707-315-8486 Fax:925-677-4670

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

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