N
is a frequency that describes the
number of individuals in the current population
(i.e., the overall number of cases considered).
N
An object of class numeric
of length 1.
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.
Current frequency information is computed by
comp_freq
and contained in a list
freq
.
Consult Wikipedia: Statistical population for additional information.
is_freq
verifies frequencies;
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.
Other frequencies:
cond_false
,
cond_true
,
cr
,
dec_cor
,
dec_err
,
dec_neg
,
dec_pos
,
fa
,
hi
,
mi