addStart: Map transactions to exposure intervals

In expstudies: Calculate Exposures, Assign Records to Intervals

Description

This function takes in exposures and transactions and returns all transactions with a matching "key" and "trans_date" within an exposure interval and attaches the start date of the corresponding exposure interval. This is useful for grouping by start date and key, aggregating, and joining to the exposure rows. In this way premium pattern analysis can be performed.

Usage

addStart(trans, exposures)

Arguments

trans	Information we wish to assign to exposure intervals.
exposures	Output from addExposures(records).

Value

Modified transaction records that corresponding to an exposure interval, the interval start date is included.

Examples

addStart(trans, exposures)

expstudies documentation built on June 14, 2019, 5:03 p.m.