amt: time_of_day – R documentation

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time_of_day

Time of the day when a fix was taken

Description

A convenience wrapper around maptools::sunriset and maptools::crepuscule to extract if a fix was taken during day or night (optionally also include dawn and dusk).

Usage

time_of_day(x, ...)

## S3 method for class 'track_xyt'
time_of_day(x, solar.dep = 6, include.crepuscule = FALSE, ...)

## S3 method for class 'steps_xyt'
time_of_day(x, solar.dep = 6, include.crepuscule = FALSE, where = "end", ...)

Arguments

`x`	`[track_xyt,steps_xyt]` A track or steps.
`...`	Further arguments, none implemented.
`solar.dep`	`[numeric(1,n)=6]` The angle of the sun below the horizon in degrees. Passed to `maptools::crepuscule`.
`include.crepuscule`	`[logical(1)=TRUE]` Should dawn and dusk be included.
`where`	`[character(1)="end"]{"start", "end", "both"}` For `steps`, should the start, end or both time points be used?

Examples

data(deer)
deer %>% time_of_day()
deer %>% steps_by_burst %>% time_of_day()
deer %>% steps_by_burst %>% time_of_day(where = "start")
deer %>% steps_by_burst %>% time_of_day(where = "end")
deer %>% steps_by_burst %>% time_of_day(where = "both")

amt

Animal Movement Tools

v0.1.4

GPL-3

Authors

Johannes Signer [aut, cre], Brian Smith [ctb], Bjoern Reineking [ctb], Ulrike Schlaegel [ctb], John Fieberg [ctb], Scott LaPoint [dtc]

Initial release

time_of_day

Description

Usage

Arguments

Examples

amt

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