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...e program continues? To put all this in context, I want to examine the results of a simulated annealing process at each temperature reduction stage of the annealing schedule. I am not doing the annealing in R for reasons of speed: I only want to use R as a graphics engine. Many thanks Luke Spadavecchia

...s=gray(0.5)) I get gray borders but black shading lines; I have tried adding col=gray(0.5), bg=gray(0.5) and fg=gray(0.5), but no luck. How can I change the colors of the shading? The help file doesn't seem to detail this, so any suggestions would be greatly appreciated. Many thanks Luke Spadavecchia

Hi there, I was wondering why x<-rnorm(n=5000,mean=1.5,sd=0.25) h<-hist(x) sum(h$density) [1] 10 I thought the integral of the histogram should be one? These seems strange to me, or am I being silly... Regards Luke Spadavecchia PS. I'm using R 2.5.1 on Mac OSX

...the fixed effect is correct. The P values for summary(aov(Model)) are all highly significant too. I would like to fit the model in R, both for consistency with my other analysis, and because I use R on my home machine, and have to venture into the university labs to use MINITAB. Many thanks Luke Spadavecchia [[alternative HTML version deleted]]

This is a reply to Luke Spadavecchia''s question about hist densities. If you want to construct a histogram where the bar heights are the percentage of observations in the intervals you can use this code: x<-rnorm(n=5000,mean=1.5,sd=0.25) h<-hist(x) h$density<-h$counts/sum(h$counts) plot(h,freq=F,ylab=&quot...

Hi Sir How to perform cluster analysis using Ward's method and K- means clustering? Regards -- AMINA SHAHZADI Department of Statistics GC University Lahore, Pakistan. [[alternative HTML version deleted]]