Description Usage Arguments Details Value Author(s) See Also

View source: R/Mort2Dsmooth_update.R

This is an internal function of package `MortalitySmooth`

which
update coefficients for penalized B-splines for two given smoothing
parameters within the function `Mort2Dsmooth`

.

1 2 | ```
Mort2Dsmooth_update(x, y, Z, offset, psi2, wei,
Bx, By, nbx, nby, RTBx, RTBy, P, a)
``` |

`x` |
vector for the abscissa of data. |

`y` |
vector for the ordinate of data. |

`Z` |
matrix of counts response. |

`offset` |
matrix with an a priori known component (optional). |

`wei` |
an optional matrix of weights to be used in the fitting process. |

`psi2` |
overdispersion parameter. |

`Bx` |
B-splines basis for the x-axis. |

`By` |
B-splines basis for the y-axis. |

`nbx` |
number of B-splines for the x-axis. |

`nby` |
number of B-splines for the y-axis. |

`RTBx` |
tensors product of B-splines basis for the x-axis. |

`RTBy` |
tensors product of B-splines basis for the y-axis. |

`P` |
penalty factor. |

`a` |
coefficients (in a matrix). |

Internal function used for updating a matrix coefficients of the B-splines in 2D Poisson penalized B-splines model.

A matrix of updated coefficients.

Carlo G Camarda

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