weitrix_dispersions: Calculate row dispersions

In pfh/weitrix: Tools for matrices with precision weights, test and explore weighted or sparse data

Calculate row dispersions

Description

Calculate the dispersion of each row. For each observation, this value divided by the weight gives the observation's variance.

Usage

weitrix_dispersions(weitrix, design = ~1)

Arguments

weitrix	A weitrix object, or an object that can be converted to a weitrix with as_weitrix.
design	A formula in terms of colData(weitrix or a design matrix, which will be fitted to the weitrix on each row. Can also be a pre-existing Components object, in which case the existing fits (design$row) are used.

Value

A numeric vector.

Examples

# Using a model just containing an intercept
weitrix_dispersions(simwei, ~1)

# Allowing for one component of variation, the dispersions are lower
comp <- weitrix_components(simwei, p=1, verbose=FALSE)
weitrix_dispersions(simwei, comp)

pfh/weitrix documentation built on Oct. 13, 2023, 1:01 p.m.