tte_build_eh: Build TTE encounter history

In annam21/spaceNtime: Run STE, TTE, and ISE Models

Description

Build TTE encounter history

Usage

tte_build_eh(df, deploy, occ, samp_per, ...)

Arguments

df	df object
deploy	deploy object
occ	tibble or dataframe specifying sampling occasions
samp_per
...	optional arguments, including quiet = T to suppress time messages

Value

a dataframe with new columns for time-to-event and censor

Examples

df <- data.frame(
  cam = c(1,1,2,2,2),
  datetime = as.POSIXct(c("2016-01-02 12:00:00",
                        "2016-01-03 13:12:00",
                        "2016-01-02 12:00:00",
                        "2016-01-02 14:00:00",
                        "2016-01-03 16:53:42"),
                      tz = "GMT"),
  count = c(1, 0, 2, 1, 2)
)
deploy <- data.frame(
  cam = c(1, 2, 2, 2), 
  start = as.POSIXct(c("2015-12-01 15:00:00",
                       "2015-12-08 00:00:00", 
                       "2016-01-01 00:00:00", 
                       "2016-01-02 00:00:00"),
                     tz = "GMT"),
  end = as.POSIXct(c("2016-01-05 00:00:00", 
                     "2015-12-19 03:30:00", 
                     "2016-01-01 05:00:00",
                     "2016-01-05 00:00:00"), 
                   tz = "GMT"),
  area = c(300, 200, 200, 450)
)
study_dates <- as.POSIXct(c("2016-01-01 00:00:00", "2016-01-04 23:59:59"), tz = "GMT")
per <- tte_samp_per(deploy, lps = 30/3600)
occ <- tte_build_occ(
  per_length = per,
  nper = 24,
  time_btw = 2 * 3600,
  study_start = study_dates[1],
  study_end = study_dates[2]
)
tte_eh <- tte_build_eh(df, deploy, occ,  per) 

annam21/spaceNtime documentation built on Dec. 12, 2021, 2:48 a.m.