Tools for Choice Model Estimation and Application

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Documentation for package ‘apollo’ version 0.0.9

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.onAttach Prints package startup message
apollo_addLog Writes an entry to 'apolloLog'
apollo_attach Attaches predefined variables.
apollo_avgInterDraws Averages inter-individual draws
apollo_avgIntraDraws Averages intra-individual draws
apollo_bootstrap Bootstrap a model
apollo_choiceAnalysis Reports market share for subsamples
apollo_cnl Calculates probabilities of a cross nested logit
apollo_combineModels Combines separate model components.
apollo_combineResults Write model results to file
apollo_conditionals Calculates conditionals
apollo_deltaMethod Delta method
apollo_detach Detaches parameters and the database.
apollo_dft Calculate DFT probabilities
apollo_drugChoiceData Simulated dataset of medication choice.
apollo_el Calculates exploded logit probabilities
apollo_estimate Estimates model
apollo_firstRow Keeps only the first row for each individual
apollo_fitsTest Compares fit of model across categories
apollo_initialise Prepares environment
apollo_insertRows Inserts rows
apollo_keepRows Keeps only some rows
apollo_lc Calculates the likelihood of a latent class model
apollo_lcConditionals Calculates conditionals of a latent class model.
apollo_lcUnconditionals Returns draws for random parameters in a latent class model model
apollo_llCalc Calculates log-likelihood of all model components
apollo_loadModel Loads model from file
apollo_lrTest Likelihood ratio test
apollo_makeCluster Creates cluster for estimation.
apollo_makeDraws Creates draws for models with mixing
apollo_makeLogLike Creates log-likelihood function.
apollo_mdcev Calculates MDCEV likelihoods.
apollo_mdcevInside Calculates MDCEV likelihoods without an outside good.
apollo_mdcevOutside Calculates MDCEV likelihoods with an outside good.
apollo_mdcnev Calculates MDCNEV likelihoods with an outside good.
apollo_mlhs Generate random draws using MLHS algorithm
apollo_mnl Calculates multinomial logit probabilities
apollo_modeChoiceData Simulated dataset of mode choice.
apollo_modelOutput Prints estimation results to console
apollo_nl Calculates probabilities of a nested logit
apollo_normalDensity Calculates density from a Normal distribution
apollo_ol Calculates the probability of an ordered logit model
apollo_outOfSample Out-of-sample fit (LL)
apollo_panelProd Calculates product of panel observations.
apollo_prediction Predicts using an estimated model
apollo_prepareProb Checks likelihood
apollo_printLog Returns the log of Apollo
apollo_readBeta Reads parameters from file
apollo_saveOutput Saves estimation results to files.
apollo_searchStart Searches for better starting values.
apollo_setRows Sets specified rows to a given value
apollo_sharesTest Compares predicted and observed shares
apollo_speedTest Measures evaluation time of a model
apollo_splitDataDraws Splits data and draws for loading in cluster
apollo_swissRouteChoiceData Dataset of route choice.
apollo_timeUseData Dataset of time use.
apollo_unconditionals Returns draws for random parameters in a latent class model model
apollo_validateControl Validates apollo_control
apollo_validateData Validates data
apollo_validateHBControl Validates the apollo_HB list of parameters
apollo_validateInputs Prepares input for 'apollo_estimate'
apollo_weighting Applies weights
apollo_writeF12 Writes an F12 file with the results of a model estimation.
apollo_writeTheta Writes the vector [beta,ll] to a file called modelname_iterations.csv