SN | R Documentation |
Function for the signal-to-noise ratio 10 * log10(mean^2/var)
SN(x)
x |
a data vector to take the S/N ratio over |
Taguchi proposes three different versions of S/N-ratio. In line with Box, Hunter and Hunter (2005), only the one for target-optimization is given here, as it is invariant against linear transformation.
a number (10 * log10(mean^2/var))
This package is currently under intensive development. Substantial changes are to be expected in the near future.
Ulrike Groemping
Box G. E. P, Hunter, W. C. and Hunter, J. S. (2005) Statistics for Experimenters, 2nd edition. New York: Wiley.
See also aggregate.design
;
function SN
has been developed for use with aggregating parameter designs
x <- rexp(10)
SN(x)
10 * log10(mean(x)^2/var(x))
20 * log10(mean(x)/sd(x))
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