Spatially Explicit Capture-Recapture with Generalised Additive Density Models

addcov2mask | Add covariates to mask from raster data |

add.covariate.bases | Add basis functions to attr(mask,"covariates"). |

AIC.secrgam | Compare SECRgam models. |

AIC.secrlist | Prints AIC table using AIC.secr output as input. |

Boland.alt | Altitudes in the Boland. |

Boland.alt.image | Altitudes in the Boland (in fromat for plotting). |

Boland.fits1 | SECR models fitted to 'Boland.CH1'. |

Boland.fits2 | SECR models fitted to 'Boland.CH2'. |

Boland.landuse | Land use class in the Boland. |

Boland.landuse.image | Land use class in the Boland (in fromat for plotting). |

Boland.leopards1 | Simulated data from 2010 camera-trap survey of leopards in... |

Boland.leopards2 | Simulated data from a more extensive simulated survey than... |

derived | Derived density calculation for secrgam objects |

esa | Effective survey area calculation for secrgam objects |

fitted.secrgam | Get fitted density values from an secrgam model |

fxi.secrgam | Probability Density of Home Range Centre |

image.mask | Image plot of mask object. |

make.density.design.matrix | Construct a design matrix from a density model |

plotDgam | SECR Density spline plotting. |

plot.secrgam | Plot fitted density surface or detection function |

prep4image | Prepares data frame for plotting with image/contour/persp. |

prepare.mask.bases | Add spline basis functions to mask covariates. |

region.ND | Abundance and Density in a region. |

secrgam.fit | SECR fit with flexible Density models - beta version. |

secrgam-package | SECR with Density Surface GAMs |

sim.popn.secrgam | Generate a population using any density formula |

trap.covar | Returns covariate values of mask point closest to each trap. |

WCape.alt | Altitudes in Western Cape. |

WCape.alt.image | Altitudes in Western Cape (in fromat for plotting). |

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