MultiCorr

A Relativistic module for the Multipoles of 2-point Correlation functions (version 1)

This is a flexible and easy-to-use Python class to compute the relativistic multipoles of the 2PCF and power spectrum.

It includes all non-vanishing multipoles and no inputs are needed.

To set the fiducial cosmology, directly alter the main .py file.

Quick guide

To use MultiCorr you will need to put the main MultiCorr.py file in the folder you are working in.

Initializing the module

import MultiCorr as corrfunc

cf = corrfunc.MultiCorr()

Getting help

cf.help()

Computing multipoles up to l = 4 (correlation function)

cf.multipoles(r,redshift,linear_bias1,linear_bias2,evolution_bias1,evolution_bias2,args)

This returns all 4 non-vanishing multipoles, where args can be either a list or an array:

args = ['linear',s_alpha,s_beta] (s = magnification biases)

args = ['linear']

True/False to select linear or non-linear correlation functions.

Dependencies

MultiCorr depends upon numpy, scipy, and the python wrapper for the Boltzmann solver Class:

https://github.com/lesgourg/class_public

Primordial non-Gaussianities

Primordial non-Gaussianities are not currently implemented.

This feature will be available with version v2.

License

You can use and alter the code freely.

Just kindly cite this webpage: https://github.com/cmguandalin/MultiCorr