Troubleshooting

doctor(model, *[, repair_ch_av, ...])	Diagnose data problems with a model.
chosen_but_not_available(model[, repair, ...])	Check if some observations are chosen but not available.
chosen_but_zero_quantity(model[, repair, ...])	Check if some observations are chosen but have zero quantity.
nothing_chosen_but_nonzero_weight(model[, ...])	Check if some observations have no choice but have some weight.
nan_data_co(model[, repair, verbose])	Check if some data_co values are NaN.
nan_weight(model[, repair, verbose])	Check if some weight values are NaN.
low_variance_data_co(model[, repair, verbose])	Check if any data_co columns have very low variance.
overspecification(model[, repair, verbose])	Check model for possible over-specification.