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    "rebase",
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    "rec_prod",
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    "root_cubic",
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    "scale_minmax",
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    "score_chisq",
    "score_mad",
    "score_t",
    "score_z",
    "select_lambda",
    "skewness",
    "smooth_kernel",
    "smooth_loess",
    "smooth_ma",
    "smooth_spline",
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    "std_median"
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      "title": "Rolling operations",
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        "blck_data"
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        "demode"
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        "diffx-rdiffx-ldiffx",
        "ldiffx",
        "rdiffx"
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        "dtrend_quad"
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    },
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    },
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    },
    {
      "page": "fill_locf",
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    },
    {
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    },
    {
      "page": "fill_spline",
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    },
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      "page": "filter_bk",
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        "filter_boosted_hp"
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    },
    {
      "page": "filter_bw",
      "title": "Butterworth Filter",
      "topics": [
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    },
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      "page": "filter_cf",
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    },
    {
      "page": "filter_hamilton",
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        "filter_hamilton"
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    },
    {
      "page": "filter_hp",
      "title": "Hodrick-Prescot Filter",
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    },
    {
      "page": "filter_tr",
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      ]
    },
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      "page": "gmean",
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        "gmean"
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    },
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      "page": "leadx-lagx",
      "title": "Compute lagged or leading values",
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        "lagx",
        "leadx",
        "leadx-lagx"
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    },
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        "modex_int"
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