Rquefts (version 1.2-3)

batch: Batch QUEFTS model predictions

Description

Make many predictions with a QUEFTS model.

Usage

# S4 method for Rcpp_QueftsModel
batch(x, supply, fert, yatt, leaf_ratio, stem_ratio, var="yield")

Value

numeric or matrix (if var="gap")

Arguments

x

QUEFTSModel

supply

matrix or data.frame with soil nutrient supply data for N, P, and K

fert

matrix or data.frame with fertilizer nutrient supply data for N, P, and K

yatt

numeric. Attainable yield

leaf_ratio

positive numeric (typically between 0 and 1) indicating the leaf weight relative to the storage organ weight. For example: 0.46 for maize, 0.17 for potato, and 0.18 for rice

stem_ratio

positive numeric (typically between 0 and 1) indicating the stem weight relative to the storage organ weight, For example: 0.56 for maize, 0.14 for potato, and 0.67 for rice

var

character. Output variable name. Either "yield" or "gap"

Examples

potato <- quefts_crop("potato")
q <- quefts(crop=potato)
fert=cbind(c(0,100), c(0,200), c(0,30))
supply=cbind(50,50,25)
yatt <- 10000
batch(q, supply, fert, yatt, 0.45, 0.4)

batch(q, supply, fert, yatt, 0.45, 0.4, var="gap")