Description Usage Arguments Methods Author(s) References See Also Examples
Set or get the desirability for each response of a factorial design. The desirability is stored in the facDesign object. Setting desirabilities is required for optimization of multiple responses.
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x |
an object of class |
value |
an object of class |
signature(objectc = "facDesign")
Get and set the desires for an object of class facDesign
.
Thomas Roth thomas.roth@tu-berlin.de
DERRINGER, G.; SUICH, R. 'Simulaneous Optimization of Several Response Variables', Journal of Quality Technology, vol. 12, no. 4. 214-219, 1980.
desirability
fits
optimum
http://www.r-qualitytools.org
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #create a response surface design
fdo = rsmDesign(k = 2, blocks = 2, alpha = "both")
#set two responses for the response surface designs
response(fdo) = data.frame(y= rnorm(14, 12, sd = 2),
y2 = -2*fdo[,4]^2 - fdo[,5]^2 + rnorm(14, 12))
#set a fit for each response
fits(fdo) = lm(y ~ A*B , data = fdo)
fits(fdo) = lm(y2 ~ A*B + I(A^2) + I(B^2), data = fdo)
#define a desirability for response y
d = desirability(y, 6, 18, scale = c(0.5, 2), target = 12)
#plot the desirability function
plot(d)
#set the desirability for y and y2 in the factorial design fdo
desires(fdo) = d
desires(fdo) = desirability(y2, 6, 18, scale = c(1, 1), target = "min")
desires(fdo)
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