Compute a complete set of probabilities from valid probability inputs.

comp_complete_prob_set is a function takes a valid set of (3 to 5) probabilities as inputs (as a vector) and returns the complete set of (3 essential and 2 optional) probabilities.

Usage

comp_complete_prob_set(prev, sens = NA, mirt = NA, spec = NA, fart = NA)

Arguments

prev

The condition's prevalence prev (i.e., the probability of condition being TRUE).

sens

The decision's sensitivity sens (i.e., the conditional probability of a positive decision provided that the condition is TRUE). sens is optional when its complement mirt is provided.

mirt

The decision's miss rate mirt (i.e., the conditional probability of a negative decision provided that the condition is TRUE). mirt is optional when its complement sens is provided.

spec

The decision's specificity value spec (i.e., the conditional probability of a negative decision provided that the condition is FALSE). spec is optional when its complement fart is provided.

fart

The decision's false alarm rate fart (i.e., the conditional probability of a positive decision provided that the condition is FALSE). fart is optional when its complement spec is provided.

Value

A vector of 5 probabilities: c(prev, sens, mirt, spec, fart).

Details

Assuming that is_valid_prob_set = TRUE this function uses comp_comp_pair on the two optional pairs (i.e., sens and mirt, and spec and fart) and returns the complete set of 5 probabilities.

See also

is_valid_prob_set verifies a set of probability inputs; is_extreme_prob_set verifies extreme cases; comp_comp_pair computes pairs of complements; is_complement verifies numeric complements; is_prob verifies probabilities; comp_prob computes current probability information; prob contains current probability information; init_num initializes basic numeric variables; num contains basic numeric variables.

Other functions computing probabilities: comp_FDR(), comp_FOR(), comp_NPV(), comp_PPV(), comp_acc(), comp_accu_freq(), comp_accu_prob(), comp_comp_pair(), comp_complement(), comp_err(), comp_fart(), comp_mirt(), comp_ppod(), comp_prob(), comp_prob_freq(), comp_sens(), comp_spec()

Examples

# ways to work:
comp_complete_prob_set(1, .8, NA, .7, NA) # => 1.0 0.8 0.2 0.7 0.3
#> [1] 1.0 0.8 0.2 0.7 0.3
comp_complete_prob_set(1, NA, .8, NA, .4) # => 1.0 0.2 0.8 0.6 0.4
#> [1] 1.0 0.2 0.8 0.6 0.4

# watch out for:
comp_complete_prob_set(8)                  # => 8 NA NA NA NA + warnings
#> Warning: One argument (either p1 or p2) is necessary.
#> Warning: One argument (either p1 or p2) is necessary.
#> [1]  8 NA NA NA NA
comp_complete_prob_set(8, 7, 6, 5, 4)      # => 8 7 6 5 4 + no warning (valid set assumed)
#> [1] 8 7 6 5 4
comp_complete_prob_set(8, .8, NA, .7, NA)  # => 8.0 0.8 0.2 0.7 0.3 + no warning (sic)
#> [1] 8.0 0.8 0.2 0.7 0.3
comp_complete_prob_set(8, 2, NA, 3, NA)    # => 8 2 NA 3 NA + no warning (sic)
#> [1]  8  2 NA  3 NA