View source: R/utils_lpi_population.R
lpi_population | R Documentation |
Calculates the log-ratio change in raw population abundances for each population time series in the obs dataframe and calculates the (LPI) index values for the time series.
lpi_population(x)
x |
Data frame of Atlas observations table joined with taxa table. |
Data frame 'x' with new columns dt
which holds a list of log-ratio growth rates, mean_dt
which holds the arithmetic mean log-ratio growth rate for the time series, and lpi
which holds a list of index values calculated from the growth rates (dt).
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