Class Penalty

source code

object --+
         |
        Penalty

Known Subclasses:

• penalties.L0
• , penalties.L1
• , penalties.L1L2Squared
• , penalties.L2
• , penalties.L2Squared
• , penalties.LInf
• , penalties.QuadraticConstraint
• , penalties.RidgeSquaredError
• , penalties.ZeroFunction
• , nesterov.gl.GroupLassoOverlap
• , nesterov.grouptv.GroupTotalVariation
• , nesterov.l1.L1
• , nesterov.l1tv.L1TV
• , nesterov.tv.TotalVariation

Represents the penalisation of a function.

Penalties must take a parameter penalty_start, with default value 0.
Columns, variables or corresponding entities with indices smaller than
penalty_start must not be penalised.

Parameters
----------
penalty_start : Non-negative integer. The number of columns, variables
        etc., to except from penalisation. Equivalently, the first index
        to be penalised. Default is 0, all columns are included.