targets_r: Calculates crop production targets
In marcusspiegel/agroEcoTradeoff: Landuse Tradeoff analysis model

Description Usage Arguments See Also Examples

This module calculates the amount of production (in tonnes) for each modelled crop, given user-specified targets, how much of it can be met on existing cropland, and how much needs to come from new cropland. This version works with rasters.

1	targets_r(prod_targ, currprod, potprod, cropnames)

`prod_targ`	A named list given the production targets for each crop as a multiple (greater than 1)
`currprod`	A RasterBrick of the current production coming from existing croplands
`potprod`	A RasterBrick of the potential production on existing croplands
`filename`	Output filename. Default is "default", in which case a system generated name is created

targets_dt for data.table version

rc <- run_code(input_key = "ZA")  # creates a once off code for any outputs saved from this simulation
ilr <- fetch_inputs(input_key = "ZA", input = "R")  # fetch all necessary inputs
ybetas <- c(1, 1)
ybetar <- yield_mod_r(inlist = ilr[c("p_yield", "pp_curr")], ybetas = ybetas, code = rc,
                     cropnames = ilr$cropnames)
prod_targr <- c("maize" = 2, "cassava" = 2, "ground" = 2, "cotton" = 2, "soy" = 2, "pulse" = 2,
               "sunflower" = 2, "sugarcane" = 2, "wheat" = 2)
targetr <- targets_r(prod_targ, currprod = ilr$currprod, potprod = ybetar$pp_curr, code = rc,
                    cropnames = ilr$cropnames)