Function assesses whether the inputs correspond to the requirements for scoring nominal forecasts.
assert_input_nominal(observed, predicted, predicted_label)
Returns NULL invisibly if the assertion was successful and throws an error otherwise.
Input to be checked. Should be an unordered factor of length n with N levels holding the observed values. n is the number of observations and N is the number of possible outcomes the observed values can assume.
Input to be checked. Should be nxN matrix of predicted
probabilities, n (number of rows) being the number of data points and N
(number of columns) the number of possible outcomes the observed values
can assume.
If observed
is just a single number, then predicted can just be a
vector of size N.
Values represent the probability that the corresponding value
in observed
will be equal to the factor level referenced in
predicted_label
.
Unordered factor of length N with N levels, where N is the number of possible outcomes the observed values can assume.