GaSP (version 1.0.6)

DescribeX: Describe the input variables.

Description

Describe the input variables to set up integration or summation ranges for Visualize.

Usage

DescribeX(
  x_names,
  x_min,
  x_max,
  support = NULL,
  num_levels = NULL,
  distribution = NULL
)

Value

A data frame with the following columns: Variable (containing x_names), Min (containing x_min), and Max (containing x_max), plus the optional columns Support (from support), NumberLevels (from num_levels), and Distribution (from distribution).

Arguments

x_names

A vector of character strings containing the names of the input variables.

x_min, x_max

Vectors of the same length as x_names containing the minima and maxima, respectively, of the input variables.

support

Optional vector of character strings of the same length as x_names. Valid strings for a variable are: "Continuous" (continuous between the input's x_min and x_max); "Fixed" (the input's x_min must equal its x_max); and "Grid" (which requires the next argument).

num_levels

An optional vector of integers for the number of levels of each input; must be present if the support argument includes "Grid". An input's number of levels is 0 if it is "Continuous", 1 if it is "Fixed", or \(> 1\) if it is "Grid" to define an equally spaced grid inclusive of the input's x_min and x_max.

distribution

An optional vector of character strings of the same length as x_names to define the weight distributions of the input variables. Valid strings are "Uniform" or "Normal" (ignored for "Fixed" inputs).

Examples

borehole_x_names <- colnames(borehole$x)
borehole_min <- c(0.05, 100.00, 63070.00, 990.00, 63.10, 700.00, 1120.00, 9855.00)
borehole_max <- c(0.15, 50000.00, 115600.00, 1110.00, 116.00, 820.00, 1680.00, 12045.00)
borehole_x_desc <- DescribeX(borehole_x_names, borehole_min, borehole_max)