Description Usage Arguments Details Value Author(s)

The function computes deviances for hold out data of ith fold

1 | ```
msefun.poisson(lambda1,f1,xi,yi)
``` |

`lambda1` |
value of lambda |

`f1` |
A fitted ‘extlasso’ object |

`xi` |
Hold out data of predictor variables |

`yi` |
Hold out data of response variables |

This function is internal and used by cross validation routines.

A value of deviance

B N Mandal and Jun Ma

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