costMatrix

a factor representing the labels of the instances

either a cost matrix to check for consistency with labels in y, or a character string defining the standard matrix to compute.
If a character string the accepted values are &quot;0/1&quot; for a 0-1 cost matrix or &quot;linear&quot; for linear cost.

Compute or check the structure of a cost matrix

Bundle methods for minimization of convex and non-convex risk
under L1 or L2 regularization. Implements the algorithm proposed by Teo et
al. (JMLR 2010) as well as the extension proposed by Do and Artieres (JMLR
2012). The package comes with lot of loss functions for machine learning
which make it powerful for big data analysis. The applications includes:
structured prediction, linear SVM, multi-class SVM, f-beta optimization,
ROC optimization, ordinal regression, quantile regression,
epsilon insensitive regression, least mean square, logistic regression,
least absolute deviation regression (see package examples), etc... all with
L1 and L2 regularization.

costMatrix: Compute or check the structure of a cost matrix

Description

Usage

Arguments

Value

See Also