Re: Color code Scatter Plot.......

[Mario Cortina Borja <M.Cortina@ich.ucl.ac.uk>]

Dear Sohail,

Probably there are better ways of doing it - one possibility 
is:

plot(df1$X, df1$Y, type='n')
for (i in unique(df1$Chr))
points(df1$X[df1$Chr==i],df1$Y[df1$Chr==i],col=i)

Best wishes,

Mario

At 10:09 AM 8/24/2005 -0400, you wrote:
> Dear S-plus users,
> I have a data frame something like:
> Chr    X        Y
> 1      
> 10       5
> 1        8.5    
> 12
> 1        
> 6       3
> 2        
> 15      22
> 2        
> 25      10
> 2        
> 9         5
> 3        
> 10       12
> 3        
> 29       41
>
>
> I want to create a scatter plot of X,Y, "color coded" based on
> the column Chr.  I.E. chr1=red,chr2=green, chr3=yellow, so
> on.......
> Can this be done in S-PLUS??  I would appreciate your help.
> Thanks.
>
> Sohail Khan
> Scientific Programmer
> COLD SPRING HARBOR LABORATORY
> Genome Research Center
> 500 Sunnyside Boulevard
> Woodbury, NY 11797
> (516)422-4076
>
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_______________________
Dr Mario Cortina Borja
Senior Lecturer in Statistics
M.Cortina@ich.ucl.ac.uk  Phone +44(0)20 7905 2113 Fax +44(0)20 7905 2381
Paed. Epid. & Biostats, Institute of Child Health, UCL, London WC1N 1EH, UK