getRxGrid: Return a grid for creating experiments and prescriptions.

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

Return a grid for creating experiments and prescriptions.

Description

Returns a grid of the user specified dimensions combined with data passed in by the user. The data available for use as an experiment is clipped to the grid, removing areas between the field edge and the grid within the field. This is used to apply the experimental or check rates.

Usage

getRxGrid(
  db,
  rx_dt,
  farmername,
  fieldname,
  trt_length,
  trt_width,
  unique_fieldname,
  mgmt_scen = "base",
  buffer_width,
  heading = 0
)

Arguments

db	Connection to an OFPE formatted database.
rx_dt	Data frame that contains the coordinates of locations to apply experimental inputs. For an experiment, these are the centroids of the grid made to aggregate data for the field.
farmername	Provide the farmer name that manages the field
fieldname	Provide the name of the field for the experiment or prescription.
trt_length	Length, in meters, for which to apply treatments.
trt_width	Width, in meters, for which to apply treatments.
unique_fieldname	Unique fieldname for the field(s) used for the experiment. This concatenates multiple fields with an ampersand. Used for labeling.
mgmt_scen	If the user is creating a prescription or experimental prescription, they must provide the management scenario to use for their prescription. The user can choose from the management options listed in the SimClass. The options are 'SSOPT': site-specific optimized rates, 'FFOPT': full-field optimum uniform rate, 'FS': farmer selected uniform rate, 'Min': applying the least intensive input rates (i.e. 0 lbs N/ac, or 25 lbs seed/ac), 'Opp' is omitted because this strategy is the least intensive input rate in conventional system types, and the farmer selected rate for organic systems, both of which are already provided. Default to 'base' for new experiments, override if making a prescription.
buffer_width	Width from the edge of the field within which to apply treatments.
heading	Numeric, heading in degrees from true north to rotate the experiment/prescription to. Default is 0 (no rotation). Note that if a heading is provided, the grid is trimmed based on the buffered boundary but rotation caused by providing a heading may skew treatment rates so that they encroach into the cleanup strip.

Value

NULL, grid data stored in database in 'rxgrids' and 'rxgridtemp'.

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