#include <language/data-io/file-handle.h>
#include <language/lexer/lexer.h>
#include <language/lexer/variable-parser.h>
#include <language/data-io/file-handle.h>
#include <language/lexer/lexer.h>
#include <language/lexer/variable-parser.h>
matrix_file = NULL;
if (!parse_correlations (lexer, ds, &cmd, NULL))
matrix_file = NULL;
if (!parse_correlations (lexer, ds, &cmd, NULL))