Calculates apollo_probabilities
with functionality="prediction".
apollo_prediction(
model,
apollo_probabilities,
apollo_inputs,
prediction_settings = list(),
modelComponent = NA
)
A list containing predictions for component modelComponent
of the model described in apollo_probabilities
.
The particular shape of the prediction will depend on the model component.
Model object. Estimated model object as returned by function apollo_estimate.
Function. Returns probabilities of the model to be estimated. Must receive three arguments:
apollo_beta
: Named numeric vector. Names and values of model parameters.
apollo_inputs
: List containing options of the model. See apollo_validateInputs.
functionality
: Character. Can be either "components"
, "conditionals"
, "estimate"
(default), "gradient"
, "output"
, "prediction"
, "preprocess"
, "raw"
, "report"
, "shares_LL"
, "validate"
or "zero_LL"
.
List grouping most common inputs. Created by function apollo_validateInputs.
List. Contains settings for this function. User input is required for all settings except those with a default or marked as optional.
modelComponent
: Character. Name of component of apollo_probabilities output to calculate predictions for. Default is to predict for all components.
nRep
: Scalar integer. Only used for models that require simulation for prediction (e.g. MDCEV). Number of draws used to calculate prediction. Default is 100.
runs
: Numeric. Number of runs to use for computing confidence intervals of predictions.
silent
: Boolean. If TRUE, this function won't print any output to screen.
summary
: Boolean. If TRUE, a summary of the prediction is printed to screen. TRUE by default.
Deprecated. Same as modelComponent
inside prediction_settings
.
Structure of predictions are simplified before returning, e.g. list of vectors are turned into a matrix.