broadness_index: Broadness index

Description Usage Arguments Details References Examples

Description

The duration of the bottom phase divided by the duration of the dive

Usage

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broadness_index(x = ind(), time_col = 1)

Arguments

x

input data, a ses object.

time_col

Character or numeric giving the column of the TDR table that stores the timestamps.

Details

The index ranges from 0 (short bottom) to 1 (long bottom).

References

Halsey, L.G., Bost, C.-A., Handrich, Y. (2007) A thorough and quantified method for classifying seabird diving behaviour. Polar Biology, 30, 991-1004.

Examples

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data(exses)
exses$stat$brd <- broadness_index(exses)

plot(brd ~ time, exses$stat)

SESman/rbl documentation built on May 9, 2019, 11:10 a.m.