Description Usage Arguments Value Examples

View source: R/weightsSubpops.R

This function returns positive weights that sum to one for individuals using subpopulation labels, such that every subpopulation receives equal weight.
In particular, if there are *K* subpopulations, then the sum of weights for every individuals of a given subpopulation will equal *1/K*.
The weight of every individual is thus inversely proportional to the number of individuals in its subpopulation.

1 | ```
weightsSubpops(subpops)
``` |

`subpops` |
The length- |

The length-*n* vector of weights for each individual.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | ```
# if every individual has a different subpopulation, weights are uniform:
subpops <- 1:10
w <- weightsSubpops(subpops)
stopifnot(all(w == rep.int(1/10,10)))
# subpopulations can be strings too
subpops <- c('a', 'b', 'c')
w <- weightsSubpops(subpops)
stopifnot(all(w == rep.int(1/3,3)))
# if there are two subpopulations
# and the first has twice as many individuals as the second
# then the individuals in this first subpopulation weight half as much
# as the ones in the second subpopulation
subpops <- c(1, 1, 2)
w <- weightsSubpops(subpops)
stopifnot(all(w == c(1/4,1/4,1/2)))
``` |

popkin documentation built on Jan. 27, 2018, 1:03 a.m.

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