hi is the frequency of hits
or true positives (
in a population of
An object of class
numeric of length 1.
is the frequency of individuals for which
Condition = TRUE and
Decision = TRUE (positive).
hi is a measure of correct classifications,
not an individual case.
hi depends on the sensitivity
(aka. hit rate or true positive rate, TPR)
and is conditional on the prevalence
to other frequencies:
In a population of size
the following relationships hold:
N = cond.true + cond.false (by condition)
N = dec.pos + dec.neg (by decision)
N = dec.cor + dec.err (by correspondence of decision to condition)
N = hi + mi + fa + cr (by condition x decision)
sens is the probability of hits or hit rate
num contains basic numeric parameters;
init_num initializes basic numeric parameters;
freq contains current frequency information;
comp_freq computes current frequency information;
prob contains current probability information;
comp_prob computes current probability information;
is_freq verifies frequencies.
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