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Automatic labelling of a tag

Source: R/tag_label_auto.R
tag_label_auto.Rd

This function uses acceleration data to classify migratory flights. The function uses a k=2 mean clustering (kmeans()) to identify high activity periods. Periods lasting more than min_duration are then considered to be migratory flight.

Usage

tag_label_auto(tag, min_duration = 30)

Arguments

tag

a GeoPressure tag object.

min_duration

Minimal duration (in minutes) to consider a high activity as migratory flight.

Value

Same data logger list than input tag, but with the column label filled with "flight" in the acceleration data.frame when a sustained high-activity period is detected.

Details

This function is inspired by the function classify_flap from the PAMlr package.

See also

GeoPressureManual

Other tag_label: tag_label(), tag_label_read(), tag_label_stap(), tag_label_write()

Examples

setwd(system.file("extdata", package = "GeoPressureR"))
tag <- tag_create("18LX", quiet = TRUE)

tag <- tag_label_auto(tag, min_duration = 15)
str(tag$acceleration)
#> 'data.frame':	4032 obs. of  3 variables:
#>  $ date : POSIXct, format: "2017-07-27 00:00:00" "2017-07-27 00:05:00" ...
#>  $ value: int  0 0 0 0 0 0 0 0 0 0 ...
#>  $ label: chr [1:4032(1d)] "" "" "" "" ...