Re: [R] Function to locate points in 3d octants or points on two axes

2011-02-02 Thread Bryan Hanson
Thanks Petr, the sign function will be of help. I was not aware of it. Bryan On Feb 2, 2011, at 3:21 AM, Petr Savicky wrote: On Tue, Feb 01, 2011 at 08:30:22PM -0500, Bryan Hanson wrote: [Sorry, resending with a proper subject line!] Hi Guru's... I have a set of points that may lie along

Re: [R] Function to locate points in 3d octants or points on two axes

2011-02-02 Thread Petr Savicky
On Tue, Feb 01, 2011 at 08:30:22PM -0500, Bryan Hanson wrote: > [Sorry, resending with a proper subject line!] > > Hi Guru's... > > I have a set of points that may lie along any of the x, y and z axes > in a Cartesian coordinate system. I am hoping that a function exists > which will determi

[R] Function to locate points in 3d octants or points on two axes

2011-02-01 Thread Bryan Hanson
[Sorry, resending with a proper subject line!] Hi Guru's... I have a set of points that may lie along any of the x, y and z axes in a Cartesian coordinate system. I am hoping that a function exists which will determine if any two selected points are on different axes, i.e, if the one of t