Thanks Jim for the excellent solution.
  
Can I make this function more flexible for the usage of different numbers of parameters?
   
  Tom
jim holtman <jholtman@gmail.com> skrev:
  The simple way is to enclose it in a 'function' and pass parameters.
Assuming that you have the same number of parameters, then the
following will do:

my.func <- function(x,y,d1,v1,s1,t1,s2,t2,s3,t3,s4,t4,s5,t5)
{
op <- par(bg = "grey97")
par(mfrow=c(1,2))
plot(d1,v1, pch="v", col="orange",cex=0.6, lwd=2,
xlab="day", ylab="resp",cex.main =1,font.main= 1,main=" Surv
data",ylim=y,xlim=x,
col.main="navyblue",col.lab="navyblue",cex.lab=0.7)

points(s1,t1, pch="A", col="green4", cex=1)
points(s2,t2, pch="B",col="navyblue", cex=1)
points(s3,t3, pch="C",col="red", cex=1)
points(s4,t4, pch="D",col="darkviolet", cex=1)
points(s5,t5, pch="E",col="blue", cex=1)
legend("topright",lbels,col=c("orange","green4","navyblue","red","darkviolet","blue"),
text.col=c("orange","green4","navyblue","red","darkviolet","steelblue"),
pch=c("v","A","B","C","D","E"),bg='gray100',cex=0.7,box.lty=1,box.lwd=1)
abline(h = -1:9, v = 0:8, col = "lightgray", lty=3)
par(op)
}

# call it with

my.func(x,y,d1,v1,s1,t1,s2,t2,s3,t3,s4,t4,s5,t5)

You might also include the data in a list to make it easier



On 9/20/07, Tom Cohen wrote:
> Dear list,
>
> I have done a scatter plot of multiple variables in the same graph, with different col and pch. I managed to do it with the following code but not know how to make a function of these so that next time if I want to do similar graph but with new variables, I dont have to copy the code and then change the old variables with the new ones but just call a function with the new variables. I dont have any experience in making a function and would be very grateful if you can help me. A function will shorten my prog dramatically, since I repeat tthis type of graph alots in my analysis.
>
> Thanks in advance,
> Tom
>
> op <- par(bg = "grey97")
> par(mfrow=c(1,2))
> plot(d1,v1, pch="v", col="orange",cex=0.6, lwd=2,
> xlab="day", ylab="resp",cex.main =1,font.main= 1,main=" Surv data",ylim=y,xlim=x,
> col.main="navyblue",col.lab="navyblue",cex.lab=0.7)
>
> points(s1,t1, pch="A", col="green4", cex=1)
> points(s2,t2, pch="B",col="navyblue", cex=1)
> points(s3,t3, pch="C",col="red", cex=1)
> points(s4,t4, pch="D",col="darkviolet", cex=1)
> points(s5,t5, pch="E",col="blue", cex=1)
> legend("topright",lbels,col=c("orange","green4","navyblue","red","darkviolet","blue"),
> text.col=c("orange","green4","navyblue","red","darkviolet","steelblue"),
> pch=c("v","A","B","C","D","E"),bg='gray100',cex=0.7,box.lty=1,box.lwd=1)
> abline(h = -1:9, v = 0:8, col = "lightgray", lty=3)
> par(op)
>
>
>
>
> ---------------------------------
>
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-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

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