stat.utility {PreProcess}

OOMPA Statistical Utility Functions

Description

Utility functions for statistical computations.

Usage

f.above.thresh(a, t)
f.cord(x, y, inf.rm)
f.oneway.rankings(r, s)

Arguments

a

a vector

t

a real number

x

a vector

y

a vector

inf.rm

a logical value

r

vector

s

vector

Value

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.

f.oneway.rankings is implemented as order(s)[r] and I cannot recall why we defined it or where we used it.

Author(s)

Kevin R. Coombes [e-mail]

Examples

x <- rnorm(1000, 1, 2)
y <- rnorm(1000, 1, 2)
f.above.thresh(x, 0)
f.above.thresh(y, 0)
f.cord(x, y)