masked()

#define masked(m,t) (m != NULL && m[t] == '1')

set_reference_missmask_from_model ()

void
set_reference_missmask_from_model (const MODEL *pmod);

copy_to_reference_missmask ()

int
copy_to_reference_missmask (const char *mask);

apply_reference_missmask ()

int
apply_reference_missmask (MODEL *pmod);

reference_missmask_present ()

int
reference_missmask_present (void);

model_adjust_sample ()

int
model_adjust_sample (MODEL *pmod,
                     int n,
                     const double **Z,
                     int *misst);

Drops leading or trailing observations from the sample range initially given by the values in the t1 and t2 members of pmod , if missing values are found among the variables given in the list member of pmod .

Also checks for missing values within the adjusted sample range. If such values are encountered, either flag an error (if misst != NULL), or construct a "missing mask" and attach it to pmod .