Description Usage Arguments Details Value See Also Examples
Maps a numeric variable to a 0-1 scale such that low values are desirable.
1 |
x |
Vector of numeric or integer values. |
cut1, cut2 |
Values of the original data that define where the desirability function changes. |
des.min, des.max |
Minimum and maximum desirability values. Defaults to zero and one, respectively. |
scale |
Controls how steeply the function increases or decreases. |
Values less than cut1
will have a high desirability. Values
greater than cut2
will have a low desirability. Values between
cut1
and cut2
will have intermediate values.
Numeric vector of desirability values.
1 2 3 4 5 6 7 8 9 10 11 12 | set.seed(1)
x <- rnorm(1000, mean=100, sd =5) # generate data
d <- d.low(x, cut1=90, cut2=110, scale=1)
# plot data
hist(x, breaks=30)
# add line
des.line(x, "d.low", des.args=c(cut1=90, cut2=110, scale=1))
hist(x, breaks=30)
des.line(x, "d.low", des.args=c(cut1=90, cut2=110, des.min=0.1,
des.max=0.95, scale=1.5))
|
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