biomod2: SampleMat2 – R documentation

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SampleMat2

Sample binary vector

Description

SampleMat2 is an internal biomod2 function that can help user to sample a binary vector keeping the same proportion of 0s and 1s than in the initial vector.

Usage

SampleMat2(ref, ratio, as.logi = FALSE)

Arguments

`ref`	a binary vector
`ratio`	the proportion of `ref` to sample
`as.logi`	logical, if FALSE (default) id of cell will be return; if TRUE, logical vector of same length than ref will be return

Details

This function can be useful to help users to select a part of initial dataset that will be only kept for all validation procedures.

Value

A list of 2 elements is returned :

- 'calibration' Ids of cells selected for calibration (1st sample)

- 'evaluation' Ids of cells selected for evaluation (1st sample complementary)

Author(s)

Damien Georges

Examples

a <- sample(c(0,1),100, replace=TRUE)
SampleMat2(ref=a, ratio=0.7)

biomod2

Ensemble Platform for Species Distribution Modeling

v3.4.6

GPL-2

Authors

Wilfried Thuiller [aut, cre], Damien Georges [aut, cre], Robin Engler [aut], Frank Breiner [aut]

Initial release

2020-02-24