try_solve: Test whether matrix is invertible

Description Usage Arguments Value

Description

try_solve is a function which tries to invert the squared fixed effects covariates matrix.

Usage

1
try_solve(x_sq)

Arguments

x_sq

A square matrix of fixed effects variables squared.

Value

If succesful: the inverted matrix. If not succesful: NULL


L-Ippel/SEMA documentation built on May 30, 2019, 8:23 a.m.