This function calculates the logit of proportions.
logit(p)
A numeric object of the same type as p
containing the logits of the input
values.
A numeric Splus object, all of whose values are in the range [0,1]. Missing
values (NA
s) are allowed.
If any elements of p
are outside the unit interval then an error message
is generated. Values of p
equal to 0 or 1 (to within machine precision)
will return -Inf
or Inf
respectively. Any NA
s in the input will also
be NA
s in the output.
inv.logit
, qlogis
for which this is a wrapper.