`freq`

is a list of named numeric variables
containing 11 frequencies:

`freq`

An object of class `list`

of length 11.

the population size

`N`

the number of cases for which

`cond_true`

the number of cases for which

`cond_false`

the number of cases for which

`dec_pos`

the number of cases for which

`dec_neg`

the number of cases for which

`dec_cor`

the number of cases for which

`dec_err`

the number of true positives, or hits

`hi`

the number of false negatives, or misses

`mi`

the number of false positives, or false alarms

`fa`

the number of true negatives, or correct rejections

`cr`

These frequencies are computed from basic parameters
(contained in `num`

) and computed by using
`comp_freq`

.

The list `freq`

is the frequency counterpart
to the list containing probability information `prob`

.

Natural frequencies are always expressed in
relation to the current population of
size `N`

.

Key relationships between frequencies and probabilities
(see documentation of `comp_freq`

or `comp_prob`

for details):

Three perspectives on a population:

by condition / by decision / by accuracy.

Defining probabilities in terms of frequencies:

Probabilities can be computed as ratios between frequencies, but beware of rounding issues.

Functions translating between representational formats:
`comp_prob_prob`

, `comp_prob_freq`

,
`comp_freq_prob`

, `comp_freq_freq`

(see documentation of `comp_prob_prob`

for details).

Visualizations of current frequency information
are provided by `plot_prism`

and
`plot_icons`

.

`comp_freq`

computes current frequency information;
`num`

contains basic numeric variables;
`init_num`

initializes basic numeric variables;
`prob`

contains current probability information;
`num`

contains basic numeric parameters;
`init_num`

initializes basic numeric parameters;
`txt`

contains current text information;
`init_txt`

initializes text information;
`pal`

contains current color information;
`init_pal`

initializes color information.

Other lists containing current scenario information: `accu`

,
`num`

, `pal_bwp`

,
`pal_bw`

, `pal_kn`

,
`pal_mbw`

, `pal_mod`

,
`pal_org`

, `pal_rgb`

,
`pal_vir`

, `pal`

,
`prob`

, `txt_TF`

,
`txt_org`

, `txt`

#> $N #> [1] 1000 #> #> $cond_true #> [1] 250 #> #> $cond_false #> [1] 750 #> #> $dec_pos #> [1] 400 #> #> $dec_neg #> [1] 600 #> #> $dec_cor #> [1] 774 #> #> $dec_err #> [1] 226 #> #> $hi #> [1] 212 #> #> $mi #> [1] 38 #> #> $fa #> [1] 188 #> #> $cr #> [1] 562 #>#> [1] 11#> [1] "N" "cond_true" "cond_false" "dec_pos" "dec_neg" #> [6] "dec_cor" "dec_err" "hi" "mi" "fa" #> [11] "cr"