Question:
/* Create a variable to be used for internal calculations only */
struct variable *
var_create_internal (int case_idx)
{
struct variable *v = var_create ("$internal", 0);
struct vardict_info vdi;
vdi.dict = NULL;
vdi.dict_index = 0;
vdi.case_index = case_idx;
var_set_vardict (v, &vdi);
return v;
}
/* Dictionary data stored in variable. */
struct vardict_info
{
int dict_index; /* Dictionary index containing the variable. */
int case_index; /* Index into case of variable data. */
struct dictionary *dict; /* The dictionary containing the variable */
};
What is the "case of variable data"? All the examples I see in
src/language/stats show a value of either 0, 1 or 2.
-Jason
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