#include "math/correlation.h"
#include "math/covariance.h"
#include "math/moments.h"
-#include "output/chart-item.h"
#include "output/charts/scree.h"
#include "output/pivot-table.h"
else if (lex_match_id (lexer, "ITERATE"))
{
if (lex_force_match (lexer, T_LPAREN)
- && lex_force_int (lexer))
+ && lex_force_int_range (lexer, "ITERATE", 0, INT_MAX))
{
n_iterations = lex_integer (lexer);
lex_get (lexer);