[Numpy-discussion] Binning

Nicola Creati ncreati at inogs.it
Thu Dec 22 04:13:56 EST 2011


I have a cloud on sparse points that can be described by a Nx3 array (N 
is the number of points). Each point is defined by an x, y and z coordinate:

x0 y0 z0
x1 y1 z1
   .    .    .
   .    .    .
   .    .    .
xn yn zn

I need to bin the cloud to a regular 2D array according to a desired bin 
size assigning to each cell (bin) the minimum z of all points that fall 
in that cell(bin). Moreover I need indexes of points that fall in each 

Is there any way to accomplish this task in numpy?


Nicola Creati

Nicola Creati
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS www.inogs.it Dipartimento di Geofisica della Litosfera Geophysics of Lithosphere Department CARS (Cartography and Remote Sensing) Research Group http://www.inogs.it/Cars/ Borgo Grotta Gigante 42/c 34010 Sgonico - Trieste - ITALY ncreati at ogs.trieste.it
off.   +39 040 2140 213
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