cv: A filter function for the coefficient of variation.
Description
cv returns a function with values for a and b
bound. This function takes a single argument. It computes the
coefficient of variation for the input vector and returns TRUE if
the coefficient of variation is between a and
b. Otherwise it returns FALSE
Usage
cv(a=1, b=Inf, na.rm=TRUE)
Arguments
a
The lower bound for the cv.
b
The upper bound for the cv.
na.rm
If set to TRUE any NA's will be removed.
Value
It returns a function of one argument. The function has an environment
with bindings for a and b.
Details
The coefficient of variation is the standard deviation divided by the
absolute value of the mean.