Set a single baseline value given input data.

Usage

set_baseline(
  x,
  time,
  min_bl_time = -Inf,
  max_bl_time = 0,
  summaryfun = mean,
  ...
)

Arguments

x: A vector of observations
time: A vector of times when the observations occurred
min_bl_time, max_bl_time: The minum and maximum possible times for baseline measurements.
summaryfun: What functions should summarize or modify the baseline value(s)?
...: Passed to `summaryfun()`

Value

A scalar value of the baseline measurement

Details

Possible baseline values are selected when:

`x` is not `NA`
`time` is not `NA`
`min_bl_time <= time`
`time <= max_bl_time`

If no value is possible, NA is returned (of the same class as `x`). Within the possible baseline values, the values with the maximum time are selected, and all selected values are summarized with `summaryfun(selected_values, ...)`