Description Usage Arguments Value

A function to allocate coordinates to an observation whose spatial location is known to the regional level

1 |

`poly` |
a SpatialPolygonsDataFrame, on which the survival data exist in aggregate form |

`popden` |
a sub-polygon raster image of population density |

`survdat` |
data.frame containing the survival data |

`pid` |
name of the variable in the survival data that gives the region identifier in poly |

`sid` |
the name of the variable in poly to match the region identifier in survdat to |

`n` |
the number of different allocations to make. e.g. if n is 2 (the default) two candidate sets of locations are available. |

`wid` |
The default is 2000, interpreted in metres ie 2Km. size of buffer to add to window for raster cropping purposes: this ensures that for each polygon, the cropped raster covers it completely. |

matrices x and y, both of size (number of observations in survdat x n) giving n potential candidate locations of points in the columns of x and y.

spatsurv documentation built on May 29, 2017, 12:21 p.m.

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