BoxletEstimator: BoxletEstimator

In Craig44/spatialsurvey: Gives access to a range of Design and Model-based estimators for two dimensional systematic surveys, particulraly systemtic spatial surveys

BoxletEstimator

Description

BoxletEstimator

Usage

BoxletEstimator(
  spatial_df,
  survey_polygon,
  quad_width,
  quad_height,
  quad_x_spacing,
  quad_y_spacing,
  boxlet_sampling_frame = NULL,
  boxlet_frame_settings = NULL,
  trace = F
)

Arguments

spatial_df	spatial data frame, with coordinates for midpoints. Attributes of spatial_df, should have coordinates with coordinate reference, along with width and height of each sampling unit.
survey_polygon	a spatial polygon that is the same coordinate reference as data.
quad_width	width of every sampling unit
quad_height	height of every sampling unit
quad_x_spacing	distance between sampling units on the x-axis
quad_y_spacing	distance between sampling units on the spatial_df-axis
boxlet_sampling_frame	a list that is the result of the function BoxletEstimatorSamplingFrame() function, if NULL then we build the frame within this function
boxlet_frame_settings	list, if build_boxlet_sampling_frame = T. then these are the parameters passed to the function see ?BoxletEstimatorSamplingFrame
trace	print messages as function progresses

Details

a functon that replicates the Boxlet variance estimator from \insertCitefewster2011variancesystematicsurvey Assumes rectangle/square survey region, assumes width and height of sampling units are constant quadrants or transects

Value

boxlet info, and variance estimator for total

References

\insertAllCited

Craig44/spatialsurvey documentation built on June 28, 2022, 8:35 p.m.