multi_sub {demcon}

R Documentation

Multiple Column Subset

Description

Multiple Column Subset

Usage

multi_sub(dat, key.dat, vars = names(key.dat))

Arguments

dat	A data.table to be subsetted.
key.dat	A data.table containing multiple columns used to index and subset dat.
vars	Character string of columns in key.dat to be used for subsetting.

Value

A data.frame, data.table subsetted by key.dat.

Examples

cow_index<-demcon::cow_index()
names(cow_index)[1]<-"COWcode"
dat <- demcon::get_vdem()

dat <- demcon::multi_sub(dat, cow_index, vars = c("COWcode", "year"))

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