find_one_near: Internal function to help in matching observations.
In EBukin/syntheticpanel: Create synthetic panels from cross sectional data

Description Usage Arguments Value Examples

Internal function to help in matching observations.

1	find_one_near(o, m, n_near = 5)

`o`	is a value to match
`m`	is a named vector which is used to find a nearest match to the `o`
`n_near`	number of the nearest observations to derive a random match. If 'n_near' is greater than 'length(match_vector)', minimum out of two is used to create a sample for selecting a random match value.

It produces a list of four elements:

'period_1_id position of the o (observation element in the named vector)
y1_hat value of the o
period_0_id position of the nearest match in the alternatives vector m
y0_hat value of the nearest match.

library(syntheticpanel)
find_one_near(c("a" = 10), c(8:15), 3)
find_one_near(c("a" = 10), setNames(c(8:15), letters[1:8]), 5)
find_one_near(c(9), setNames(c(8:15), letters[1:8]), 5)
find_one_near(c(10), c(8:15), 5)