tau

Calculates Landuse intensity indicator tau based on a MAgPIE gdx file

Usage

tau(
  gdx,
  file = NULL,
  level = "reg",
  start_value = FALSE,
  digits = 4,
  prev_year = "y1985",
  type = "crop"
)

Arguments

gdx

GDX file

file

a file name the output should be written to using write.magpie

level

Level of regional aggregation; "reg" (regional), "glo" (global), "regglo" (regional and global) or any other aggregation level defined in superAggregateX

start_value

If TRUE, the initial values are added under the year prev_year

digits

The result will be rounded to this number of digits

prev_year

Year to store the initialization tau information in

type

currently only "crop"

Value

A MAgPIE object containing tau values (index)

Author

Jan Philipp Dietrich, Patrick v. Jeetze

Examples

if (FALSE) { # \dontrun{
x <- tau(gdx)
} # }