Calculate the mean (or weighted mean) of several predictions.
Usage
ecospat.Epred (x, w=rep(1,ncol(x)), th=0)
Arguments
x
A dataframe object with SDM predictions.
w
Weight of the model, e.g. AUC. The default is 1.
th
Threshold used to binarize.
Value
Details
The Weighted Average consensus method utilizes pre-evaluation of the predictive performance of the single-models. In this approach, half (i.e. four) of the eight single-models with highest accuracy are selected first, and then a WA is calculated based on the pre-evaluated AUC of the single-models
Marmion, M., M. Parviainen, M. Luoto, R.K. Heikkinen andW. Thuiller. 2009. Evaluation of consensus methods in predictive species distribution modelling. Diversity and Distributions, 15, 59-69.