spc.vector returns a selected range of elements from a
frequency spectrum as a plain numeric vector (which may contain
entries with V_m = 0, unlike the spc object
itself).
Usage
spc.vector(obj, m.min=1, m.max=15, all=FALSE)
Arguments
obj
an object of class spc, representing an observed or
expected frequency spectrum
m.min, m.max
determine the range of frequency classes to be returned
(defaulting to 1 ... 15)
all
if TRUE, a vector containing the entire frequency
spectrum is returned, i.e. m.max is set to max(obj$m).
Note that the value of m.min can still be overridden manually
to return only part of the spectrum.
Details
spc.vector(obj, a, b) is fully equivalent to Vm(obj,
a:b) (and is implemented in this way).
Value
A numeric vector with the selected elements of the frequency spectrum.
In this vector, empty frequency classes (V_m = 0) are
represented by 0 entries (unlike the spc object, which omits
all empty classes).
See Also
spc for more information about spc objects and
links to relevant functions
Vm.spc for an alternative way of extracting spectrum
vectors from a .spc object, and N.spc,
V.spc, VV.spc, VVm.spc for
extracting related information
Examples
## Brown Noun spectrum
data(BrownNoun.spc)
## by default, extract first 15 elements
spc.vector(BrownNoun.spc)
## first five elements
spc.vector(BrownNoun.spc,1,5)
## just frequencies of spc elements 4 and 5
spc.vector(BrownNoun.spc,4,5)
## same as
Vm(BrownNoun.spc,4:5)
providing 
.