Skip to contents

Fabric intensity and shape indices

Source: R/fabric_plots.R
fabric_indexes.Rd

Fabric intensity and shape indices

Usage

fabric_indexes(x)

Arguments

x

numeric. Can be three element vector, three column array, or an object of class "line" or "plane"

Value

numeric vector containing the fabric shape and intensity indices:

P

Point (Vollmer 1990). Range: (0, 1)

G

Girdle (Vollmer 1990). Range: (0, 1)

R

Random (Vollmer 1990). Range: (0, 1)

B

cylindricity (Vollmer 1990). Range: (0, 1)

C

cylindricity or Fabric strength (Woodcock 1977). Rrange: (0, Inf)

I

cylindricity or Fabric intensity (Lisle 1985). Range: (0, 5)

D

"distance" from uniformity, linear from R to P, and R to G (Vollmer 2020). Range: (0, 1). End members are: uniform D = 0, girdle D = 0.5, cluster D = 1. The 99% level for a test against uniformity for a sample size of 300 is D = 0.1.

See also

or_shape_params()

Examples

set.seed(1)
mu <- Line(120, 50)
x <- rvmf(100, mu = mu, k = 1)
fabric_indexes(x)
#>          P          G          R          B          C          I          D 
#> 0.06422311 0.04487228 0.89090461 0.10909539 0.25604683 2.45025303 0.07790319