| stat.utility {PreProcess} | R Documentation |
Utility functions for statistical computations.
f.above.thresh(a, t) f.cord(x, y, inf.rm) f.oneway.rankings(r, s) stdize(x, center=TRUE, scale=TRUE)
a |
a vector |
t |
a real number |
x |
a vector |
y |
a vector |
inf.rm |
a logical value |
r |
|
s |
|
center |
|
scale |
f.above.thresh returns the fraction of elements in the vector
a that are greater than the threshold t.
f.cord returns the concordance coefficient between the two
input vectors x and y. If inf.rm is true, then
infinite values are removed before computing the concordance; missing
values are always removed.
stdize is a synonym for scale.
f.oneway.rankings is implemented as order(s)[r] and I
cannot recall why we defined it or where we used it.
Kevin R. Coombes <kcoombes@mdanderson.org>
x <- rnorm(1000, 1, 2) y <- rnorm(1000, 1, 2) f.above.thresh(x, 0) f.above.thresh(y, 0) f.cord(x, y) z <- stdize(x) f.cord(x, z)