contourPlot3: contourPlot3: Ternary plot

In r6qualitytools: R6-Based Statistical Methods for Quality Science

contourPlot3: Ternary plot

Description

This function creates a ternary plot (contour plot) for mixture designs (i.e. object of class mixDesign).

Usage

contourPlot3(
  x,
  y,
  z,
  response,
  data = NULL,
  main,
  xlab,
  ylab,
  zlab,
  form = "linear",
  col = 1,
  col.text,
  axes = TRUE,
  steps,
  plot = TRUE,
  show.scale = TRUE
)

Arguments

x	Factor 1 of the mixDesign object.
y	Factor 2 of the mixDesign object.
z	Factor 3 of the mixDesign object.
response	the response of the mixDesign object.
data	The mixDesign object from which x,y,z and the response are taken.
main	Character string specifying the main title of the plot.
xlab	Character string specifying the label for the x-axis.
ylab	Character string specifying the label for the y-axis.
zlab	Character string specifying the label for the z-axis.
form	A character string or a formula with the syntax 'y ~ A + B + C'. If form is a character string, it has to be one of the following: 'linear' 'quadratic' How the form influences the output is described in the reference listed below. By default, form is set to 'linear'.
col	A predefined value (1, 2, 3, or 4) or a self-defined colorRampPalette specifying the colors to be used in the plot.
col.text	A character string specifying the color of the axis labels. The default value col.text is '1'.
axes	A logical value specifying whether the axes should be plotted. By default, axes is set to TRUE.
steps	A numeric value specifying the resolution of the plot, i.e., the number of rows for the square matrix, which also represents the number of grid points per factor. By default, steps is set to 25.
plot	Logical value indicating whether to display the plot. Default is TRUE.
show.scale	Logical value indicating whether to display the color scale on the plot. Default is TRUE.

Value

The function contourPlot3 returns an invisible list containing:

• mat - A matrix containing the response values as NA's and numerics.

• plot - The generated plot.

See Also

mixDesign.c, mixDesign, wirePlot3.

Examples

mdo = mixDesign(3,2, center = FALSE, axial = FALSE, randomize = FALSE,
                replicates  = c(1,1,2,3))
mdo$names(c("polyethylene", "polystyrene", "polypropylene"))
mdo$units("percent")
elongation = c(11.0, 12.4, 15.0, 14.8, 16.1, 17.7, 16.4, 16.6, 8.8, 10.0, 10.0,
               9.7, 11.8, 16.8, 16.0)
mdo$.response(elongation)
contourPlot3(A, B, C, elongation, data = mdo, form = "linear")
contourPlot3(A, B, C, elongation, data = mdo, form = "quadratic", col = 2)
contourPlot3(A, B, C, elongation, data = mdo,
             form = "elongation ~ I(A^2) - B:A + I(C^2)",
             col = 3, axes = FALSE)
contourPlot3(A, B, C, elongation, data = mdo,
             form = "quadratic",
             col = c("yellow", "white", "red"),
             axes = FALSE)

r6qualitytools documentation built on Oct. 4, 2024, 1:09 a.m.