From: Derick Schoonbee (schoonbee@hotmail.com)
Date: Fri 26 Dec 2003 - 10:07:06 EST
Message-id: <LAW11-F20i6QqbGHuy600066a2b@hotmail.com>
Hi,
I'm new to R (and math ;) Would somebody please be so kind as to direct me
in plotting a 3D sphere?
I tried something in the lines of:
####
y <- x <- seq(-pi, pi, length=pi*10)
f <- function(x,y)
{
z <- sqrt(pi - x^2 - y^2)
#z[is.na(z)] <- 0
z
}
z <- outer(x, y, f)
persp(x, y, z, theta = 120, phi = 30)
####
I've also tried: .... make.surface.grid(...) .. persp( as.surface( grid, z)
) ... with the same result: 'Incomplete' demi sphere and others..
Any suggestions/solutions would be appreaciated.
Regards,
Derick
PS:Merry X-mas ;)
______________________________________________
R-help@stat.math.ethz.ch mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
This archive was generated by hypermail 2.1.3 : Thu 01 Jan 2004 - 09:21:01 EST