Description Usage Arguments Value Author(s) Examples
This function produces a plot to choose the optimal spatial resolution for analysis. A point process model is calculated for each nominated spatial resolution and the log-likelihood of all fitted models are plotted against the spatial resolutions.
1 |
scales |
A vector of spatial resolutions for which to produce the plot. |
lambda |
The LASSO penalty for each fitted spatial resolution. This should be a single value such that only one point process model is computed for each spatial resolution. |
coord |
A vector containing the names of the longitude and latitude coordinates,
used by |
sp.xy |
A matrix of species locations containing at least one column representing
longitude and one column representing latitude, as in |
env.grid |
The geo-referenced matrix of environmental grids, as in |
formula |
The formula of the fitted model, as in |
... |
Further arguments passed to |
A plot of log-likelihood versus spatial resolution.
Ian W. Renner
1 2 3 4 5 6 | data(BlueMountains)
sub.env = BlueMountains$env[BlueMountains$env$Y > 6270 & BlueMountains$env$X > 300,]
sub.euc = BlueMountains$eucalypt[BlueMountains$eucalypt$Y > 6270 & BlueMountains$eucalypt$X > 300,]
scales = c(0.5, 1, 2, 4, 8, 16)
ppm.form = ~ poly(FC, TMP_MIN, TMP_MAX, RAIN_ANN, degree=2)
findres(scales, formula = ppm.form, sp.xy = sub.euc, env.grid = sub.env)
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