dismo: gbm.plot.fits – R documentation

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gbm.plot.fits

gbm plot fitted values

Description

Plots the fitted values from a gbm object returned by any of the model fitting options. This can give a more reliable guide to the shape of the fitted surface than can be obtained from the individual functions, particularly when predictor variables are correlated and/or samples are unevenly distributed in environmental space. Allows masking out of absences to enable focus on sites with high predicted values.

Usage

gbm.plot.fits(gbm.object, v=0, mask.presence=FALSE, use.factor=FALSE )

Arguments

`gbm.object`	a gbm object
`v`	variable numbers to be plotted (if 0 then all are plotted)
`mask.presence`	Logical. If `TRUE`, the function only plots fitted values for presences
`use.factor`	Logical. If `TRUE`, forces to use quicker printing box and whisker plot

Author(s)

John R. Leathwick and Jane Elith

References

Elith, J., J.R. Leathwick and T. Hastie, 2009. A working guide to boosted regression trees. Journal of Animal Ecology 77: 802-81

dismo

Species Distribution Modeling

v1.3-3

GPL (>= 3)

Authors

Robert J. Hijmans, Steven Phillips, John Leathwick and Jane Elith

Initial release

2020-11-16