[R] Graph to show that very few classes has maximum best performers

[Jim Lemon]

On 11/05/2009 03:14 PM, Sunita Patil wrote:
> Hello Jim
>
> This seems to work but the problem is my dataset is very large so the 
> image is not coming clear, its all mixed up. my dataset contains 150 
> rows. in such case what has to be done?
>
Hi Sunita,
I don't think that staircase.plot will be suitable for 150 values unless 
you define a very large device of almost a meter in the direction of 
plotting. Try this and see how you like it:

x11(width=15,height=4)
plot(sundat$class_no,sundat$best_performers,
  type="h",xaxt="n",xlab="Class number",
  ylab="Number of best performers",
  main="Best performers by class")
library(plotrix)
staxlab(at=class_no,labels=class_no,
  nlines=3,line.spacing=0.5,cex=0.5)

Jim