[patch #5968] initial version of interaction

[John Darrington]

Update of patch #5968 (project pspp):

             Assigned to:                    None => jstover                

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Follow-up Comment #1:

I would prefer this to go in src/math instead of src/data.  

Instead of (var_get_type (v[i]) == VAR_STRING) you could write
var_is_alpha (v[i])

Similarly var_get_type (v[i]) == VAR_NUMERIC can become var_is_numeric
(v[i])


 for (i = 1; i < n_vars; i++)
     {
       tmp = 0.0;
       if (var_get_type (v[i]) == VAR_NUMERIC)
        {
          tmp *= vals[i]->f;
        }
     }

Can this ever result in tmp having a non-zero value??


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