psyosphere (version 0.1.6)

t_bearing: Add bearings

Description

Bearing towards the next coordinate in the tracks.

Usage

t_bearing(
  tracks, t_id = "id", bind = TRUE, drop = TRUE, cname = "bearings"
)

Arguments

tracks

psyo. Data frame with tracks.

t_id

character or numeric. Column name in tracks that identifies the separate tracks.

bind

logical. Return the distance as list (FALSE) or add it to tracks (TRUE).

drop

logical. If TRUE and only one observation is returned drop the data frame and collapse the return value to a vector.

cname

character. Column name of the returned calculation result.

Value

psyo

Details

For the last coordinate within a track the function returns empty because there are no bearings towards a following coordinate possible.

If the succeeding coordinate is the same like the current coordinate, the function return empty for the current coordinate.

See Also

bearing, t_distance, t_speed, t_time_difference

Examples

# NOT RUN {
data(psyo)
psyo <- t_bearing(psyo)
# }