R: exact qr.solve

qr.solve_exact {PhylogeneticEM} | R Documentation

## exact qr.solve

### Description

This is the same function as `qr.solve`, but it throws an error if an exact fit cannot be found (instead of returning a least square fitted value, which is the default behavior of `qr.solve`).

### Usage

    qr.solve_exact(a, b, tol = 1e-07)

### Arguments

`a` | a QR decomposition or a rectangular matrix.
`b` | a vector or matrix of right-hand sides of equations. `incidence.matrix`.
`tol` | the tolerance for detecting linear dependencies in the columns of x. Only used if LAPACK is false and x is real.

[Package PhylogeneticEM version 1.1.0 Index]