Description Usage Format Details References See Also Examples
dec_cor
is a frequency that describes the
number of individuals in the current population N
for which the decision is correct/accurate
(i.e., cases in which the decision corresponds to the condition).
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An object of class numeric
of length 1.
Key relationships:
to probabilities:
The frequency of dec_cor
individuals depends on the population size N
and
the accuracy acc
.
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)
dec_cor = hi + cr
dec_err = mi + fa
N = hi + mi + fa + cr
(by condition x decision)
correspondence:
When not rounding the frequencies of freq
then
dec_cor = N x acc = hi + cr
(i.e., dec_cor
corresponds to the sum of true positives hi
and true negatives cr
.
Current frequency information is computed by
comp_freq
and contained in a list
freq
.
Consult Wikipedia: Confusion matrix 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: N
,
cond_false
, cond_true
,
cr
, dec_err
,
dec_neg
, dec_pos
,
fa
, hi
, mi
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