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Extract Unique IDs from a Track Frame

Source: R/auxiliary.R
unique_ids.Rd

This function retrieves the unique track IDs from a trackframe object. The trackframe should be a data frame-like structure with an attribute specifying the column containing track IDs.

Usage

unique_ids(tf)

Arguments

tf

A trackframe object containing the tracking data. Must have an attribute indicating the track ID column (id).

Value

A vector of unique track IDs extracted from the trackframe.

See also

as.trackframe()

Examples

unique_ids(tf_mini)
#> [1] "track_1" "track_2" "track_3"