derivFFoptCpp: Function for identifying the optimum full-field experimental...

In paulhegedus/OFPE: On-Farm Precision Experiments (OFPE) Data Management and Analysis Tools

Function for identifying the optimum full-field experimental rate based on profit maximization. This function selects the optimum rate as the rate where the difference in full-field net-return between experimental rates (first derivitave of the net-return vs. experimental rate function) does not exceed the cost of applying one more unit of the experimental rate across the entire field.

Description

This function calculates the optimum rate from the sum of the net-return for a uniform rate applied across the field to identify the full-field optimum rate.

Usage

derivFFoptCpp(NRff, rr, fieldsize, CEXP)

Arguments

NRff	A matrix with rows for each experimental rate and columns for the rate and the full-field net-return calculated under a uniform application of the corresponding rate.
rr	Integer of the number of observations (rows of NRdf).
fieldsize	Double, the size of the field(s) that the experimental input would be applied to.
CEXP	Double, the cost of the experimental input.

Details

See the documentation in OFPE::derivNRoptCpp for a site-specific example of how the optimum is identified compared to when the optimization method is set to 'max'.

Value

NRffmax, table with the full-field optimum rate and the full-field net-return.

paulhegedus/OFPE documentation built on Nov. 23, 2022, 5:09 a.m.