-struct weighted_value;
-struct metrics;
-
-/* Draw an outlier on the plot CH
- * at CENTRELINE
- * The outlier is in (*wvp)[idx]
- * If EXTREME is non zero, then consider it to be an extreme
- * value
- */
-void draw_outlier(struct chart *ch, double centreline,
- struct weighted_value **wvp,
- int idx,
- short extreme);
-