datatable.models.Ftrl.lambda1

datatable.models.Ftrl.
lambda1
=
newlambda1
source

L1 regularization parameter, \(\lambda_1\) in per-coordinate FTRL-Proximal algorithm.

Parameters

return
float

Current lambda1 value.

newlambda1
float

New lambda1 value, should be non-negative.

except
ValueError

The exception is raised when newlambda1 is negative.