load_nz

Load a number density n(z) for weak lensing from a file

File	number_density/load_nz/load_nz.py
Attribution	CosmoSIS Team
URL

This simple module just loads a set of n(z) for different bins from a fixed file and provides it as-is. The n(z) are normalized before being saved.

Assumptions

• n(z) file first column = z, others = bin n(z)

Setup Parameters

Name	Type	Default	Description
filepath	str		Absolute or relative path to an n(z) file
des_fmt	bool	False	Use the DES format n(z) with columns zmin, zmax, nz1, nz2…
histogram	bool	False	Assume that the given z values are lower edges of histogram bins, not sample points.
output_section	str	wl_number_density	The section to which to save the output.

Input values

None

Output values

Output values

Section	Name	Type	Description
wl_number_density	nz	int	Number of redshift samples.
	nbin	int	Number of bins
	z	real 1d	; redshift sample values
	bin_{i}	real 1d	; n(z) at redshift sample values. bin_1, bin_2, …