| N {riskyr} | R Documentation |
Number of individuals in the population.
Description
N is a frequency that describes the
number of individuals in the current population
(i.e., the overall number of cases considered).
Usage
N
Format
An object of class numeric of length 1.
Details
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.
References
Consult Wikipedia: Statistical population for additional information.
See Also
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
Examples
N <- 1000 # => sets a population size of 1000
is_freq(N) # => TRUE
is_prob(N) # => FALSE (as N is no probability)