Description Usage Format Details See Also
hi
is the frequency of hits
or true positives (TP
)
in a population of N
individuals.
1 |
An object of class numeric
of length 1.
Definition: hi
is the frequency of individuals for which
Condition = TRUE
and Decision = TRUE
(positive).
hi
is a measure of correct classifications,
not an individual case.
Relationships:
to probabilities:
The frequency hi
depends on the sensitivity sens
(aka. hit rate or true positive rate, TPR)
and is conditional on the prevalence prev
.
to other frequencies:
In a population of size N
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 HR
;
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.
Other frequencies: N
,
cond.false
, cond.true
,
cr
, dec.cor
,
dec.err
, dec.neg
,
dec.pos
, fa
, mi
Other essential parameters: cr
,
fa
, mi
, prev
,
sens
, spec
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