[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
## duplicate values in 3D space

**From**: |
Iago Mosqueira |

**Subject**: |
duplicate values in 3D space |

**Date**: |
Thu, 13 Feb 2003 18:21:17 -0000 |

When I need to estimate the mean of values (data) falling in the same
latitude (y) and longitude (x), I do
sparse(x,y,data,max(x)-min(x),max(y)-min(y))./sparse(x,y,ones(length(x)),max
(x)-min(x),max(y)-min(y))
but I now need to do this in 3D space. I have tried with a loop that does
the same calculation for each value of z, but it becomes very slow in my
600x600x120 space. Is there any simpler way of doint that (finding points
that share 2 or 3 values)? What is the present state of 3D matrices support
in octave CVS?
Cheers,
iago
-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.
Octave's home on the web: http://www.octave.org
How to fund new projects: http://www.octave.org/funding.html
Subscription information: http://www.octave.org/archive.html
-------------------------------------------------------------

**duplicate values in 3D space**,
*Iago Mosqueira* **<=**