positional_marked_npairs_xy_z_engine¶
- halotools.mock_observables.pair_counters.marked_cpairs.positional_marked_npairs_xy_z_engine(double_mesh, x1in, y1in, z1in, x2in, y2in, z2in, weights1in, weights2in, weight_func_idin, rp_bins, pi_bins, cell1_tuple)¶
Cython engine for counting pairs of points as a function of three-dimensional separation.
- Parameters:
- double_meshobject
Instance of
RectangularDoubleMesh- x1in, y1in, z1inarrays
Numpy arrays storing Cartesian coordinates of points in sample 1
- x2in, y2in, z2inarrays
Numpy arrays storing Cartesian coordinates of points in sample 2
- weight_func_idint, optional
weighting function integer ID.
- weights1inarray
- weights2inarray
- rp_binsarray_like
numpy array of boundaries defining the bins of separation in the xy-plane \(r_{\rm p}\) in which pairs are counted.
- pi_binsnumpy.array
array defining parallel separation in which to sum the pair counts
- cell1_tupletuple
Two-element tuple defining the first and last cells in double_mesh.mesh1 that will be looped over. Intended for use with python multiprocessing.
- Returns:
- countsarray
Integer array of length len(rp_bins) giving the number of pairs separated by a distance less than the corresponding entry of
rp_bins.