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    "reverse",
    "show.pref",
    "show.query",
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        "high",
        "high_",
        "is.base_pref",
        "low",
        "low_",
        "true",
        "true_"
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      "title": "Useful Base Preference Macros",
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        "base_pref_macros",
        "between",
        "layered",
        "pos"
      ]
    },
    {
      "page": "complex_pref",
      "title": "Complex Preferences",
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        "&,preference-method",
        "*,preference,preference-method",
        "*,preference-method",
        "+,preference,preference-method",
        "+,preference-method",
        "complex_pref",
        "is.complex_pref",
        "reverse",
        "|,preference,preference-method",
        "|,preference-method"
      ]
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        "as.expression,basepref-method",
        "as.expression,complexpref-method",
        "as.expression,emptypref-method",
        "as.expression,preference-method",
        "as.expression,reversepref-method",
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        "assoc.df<-",
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        "general_pref",
        "is.empty_pref",
        "is.preference",
        "length,basepref-method",
        "length,complexpref-method",
        "length,emptypref-method",
        "length,preference-method",
        "length,reversepref-method"
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      "topics": [
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        "get_btg_dot",
        "plot_btg"
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      "title": "Pareto Front Plot",
      "topics": [
        "plot_front"
      ]
    },
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        "hasse_succ",
        "init_pred_succ",
        "pred_succ"
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        "psel",
        "psel.indices"
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    },
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        "rPref"
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