`hi`

is the frequency of hits
or true positives (`TP`

)
in a population of `N`

individuals.

`hi`

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:

`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`