Nulla function

Null-space basis

use Lapack for null space basis (derived from MASS::Null)

Nulla(M, rcond = 1e+10)

Arguments

• M: matrix such that t(M)%*%B=0 where B is a basis of t(M)'s kernel (aka Null-space)
• rcond: maximal condition number for rank definition

Returns

numeric matrix whose columns are basis vectors. Its attribute 'qr' contains QR decomposition of M.

Examples

Nulla(1:3)

See Also

MASS::Null