calc_hwi {hwig} | R Documentation |
Calculates the Half-Weight Association Index
calc_hwi(DT, id, group, by = NULL)
DT |
input group membership data, in individual/group format |
id |
column indicating id in DT |
group |
column indicating group in DT |
by |
column(s) to split calculation by. e.g.: year |
Expects an input 'DT' with id and group column, e.g. as returned by group_pts.
HWI data.table or list of data.tables.
# Load data.table
library(data.table)
# Load example data
DT <- fread(system.file("extdata", "DT.csv", package = "hwig"))
# Calculate HWI
hwi <- calc_hwi(DT, 'id', 'group', 'yr')