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Select Observations by closest time (seconds)

Source: R/04_aggregate_obs.R
obs_select_sec.Rd

This function select by closest time. Good for aircrafts

Usage

obs_select_sec(
  dt,
  origin = "1970-01-01",
  tz = "UTC",
  seconds = 30,
  verbose = TRUE
)

Arguments

dt

data.table

origin

a date-time object, default "1970-01-01"

tz

time zone string

seconds

seocnds target to select and filter data

verbose

logical to show more information

Value

A filtered data.frame.

Note

By default add column timeUTC based on the input column `key_time`

Examples

if (FALSE) { # \dontrun{
# Do not run
obs <- system.file("data-raw", package = "rtorf")
index <- obs_summary(obs)
dt <- obs_read(index)
dx <- obs_read(index, expr = "altitude_final == '5800'")
dx <- obs_addtime(dx[, -"site_code"])
dy <- obs_select_sec(dx)
} # }