plotSimplex3D {labsimplex}

Draws a three dimentional plot of the vertexes in a simplex

Description

The function generates a 3D plot of the vertexes in a simplex optimization when simplex dimensionality is at least 3. When dimensionality is higher than 3, the plot produced is a projection of the selected variables.

Usage

plotSimplex3D(simplex, sel.dim = NULL, all.ver = TRUE, all.lin = TRUE,
  main = NULL, angle = 30, ...)

Arguments

simplex

object of class smplx with the simplex information. See labsimplex

sel.dim

numeric or char vector for variables to be considered when simplex dimensionality is higher than 3. By default, the first three are chosen. If the vector is numeric, it must contain the ordinal numbers corresponding to the desired variables. If the vector is of class char, it must contain the names of such dimensions.

all.ver

logical default to TRUE. Should all vertexes be plotted? If FALSE, the function draws only the vertexes of the current simplex.

all.lin

logical default to TRUE. Should all lines be drawn? If FALSE, the function draws only the lines of the last simplex.

main

title for the plot.

angle

angle for perspective between x and y axis.

...

other arguments passed to scatterplot3d

Value

3D plot of the simplex coordinates.

Author(s)

Cristhian Paredes, [e-mail]

Jesús Ágreda, [e-mail]

See Also

plot.smplx

Examples

  plotSimplex3D(simplex = labsimplex(n = 3, centroid = c(350, 11, 0.7),
                                     stepsize = c(10, 0.5, 0.1),
                                     var.name = c('temperature', 'pH',
                                                  'concentration')))

  ## Several options are posible when visualizing higher order simplexes
  plotSimplex3D(simplex = labsimplex(n = 8))
  plotSimplex3D(simplex = labsimplex(n = 8), sel.dim = c(4, 6, 8))

  ## Simplex movements can be visualized after some experiments has been
  ## performed
  simplex <- exampleOptimization(surface = exampleSurfaceR3,
                                 centroid = c(350, 11, 0.7),
                                 stepsize = c(10, 0.5, 0.1),
                                 experiments = 18)
  plotSimplex3D(simplex = simplex, angle = 80)