DI 1 Table has more than one classifying factor.
DI 2 Classifying factor does not have a levels variate.
DI 3 Levels variate has an invalid value.
DI 4 Table has an invalid value.
DI 5 Variate has an invalid value.
DI 6 Invalid values in limits variate.
DI 7 Incorrect number of values.
DI 8 Coarse grouping – initial values may need to be specified.
DI 9 Class limits outside valid range.
DI 10 Polya-Aeppli cannot be fitted.
DI 11 Data seems incompatible with given model.
DI 12 Iteration for estimation of fitted quartiles has not converged.
DI 13 Variance-covariance matrix of parameter estimates is not positive definite.
DI 14 No provision for missing values when fitting Pascal-Poisson.
DI 15 Sample size must exceed 1.
DI 16 Species Frequency values must be positive.
DI 17 Frequencies must be positive or zero.