fisher: Fisher function

In UoA-eResearch/fisheR: Fisher's Information for timeseries data

Fisher function

Description

The fisher function calculates the Fisher's Information following: Cabezas, H., Campbell, D., Eason, T., Garmestani, A. S., Heberling, M. T., Hopton, M. E., Templeton, J., White, D., Zanowick, M., & Sparks, R. T. (2010). San Luis Basin sustainability metrics project: A methodology for evaluating regional sustainability. USEPA. USA. Eason, T., & Cabezas, H. (2012). Evaluating the sustainability of a regional system using Fisher information in the San Luis Basin, Colorado. Journal of Environmental Management, 94(1), 41–49. https://doi.org/10.1016/j.jenvman.2011.08.003 Ahmad, N., Derrible, S., Eason, T., & Cabezas, H. (2016). Using Fisher information to track stability in multivariate systems. Royal Society Open Science, 3(11), 160582. https://doi.org/10.1098/rsos.160582

Usage

fisher(
  df,
  sos = c(),
  w_size = 8,
  w_incre = 1,
  smooth_step = 3,
  RedRum = FALSE,
  write_out_csv = FALSE,
  write_out_rds = FALSE,
  display_plot = FALSE
)

Arguments

df	A dataframe containing time information and variables of interest
sos	An option vector containing size of state
w_size	Window size
smooth_step	Window size for the smoothing operation
w_incr	Window increment
xtick_step	Number of ticks on the x axis (currently unused)

Value

A dataframe where the last three columns are the Fisher's Information means, Fisher's Information smoothed and time-steps

UoA-eResearch/fisheR documentation built on July 8, 2023, 5:06 p.m.