get_laglead: Construct or extract data that represents a lag-lead window
Description
Constructs lag-lead window data set from raw inputs or from data objects
with suitable information stored in attributes, e.g., objects created
by as_ped.
Usage
get_laglead(x, ...)
# S3 method for default
get_laglead(x, tz, ll_fun, ...)
# S3 method for data.frame
get_laglead(x, ...)
Arguments
x
Either a numeric vector of follow-up cut points or a suitable object.
...
Further arguments passed to methods.
tz
A vector of exposure times
ll_fun
Function that specifies how the lag-lead matrix
should be constructed. First argument is the follow up time
second argument is the time of exposure.