color for points
Sam R. Smith a ??crit :
Hi,
I have the following code to randomly generate the points:
csr <-function(n=60){
x=runif(n)
y=runif(n)
f=cbind(x,y)
}
plot(csr())
I wonder how to code to make the first twenty points to be BLUE; second twenty points to be RED; the last twenty points to be GREEN?
mynewfct = function(n=60)
{
x=runif(n)
y=runif(n)
f=cbind(x,y)
plot(f[1:20] , col='blue');
par(new=T);
plot(f[21:40] , col='red');
par(new=T);
plot(f[41:60] , col='green');
}
hih