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    "ols_anova",
    "ols_apc",
    "ols_coll_diag",
    "ols_compare_model_performance",
    "ols_correlations",
    "ols_count_obs",
    "ols_count_parameters",
    "ols_eigen_cindex",
    "ols_fpe",
    "ols_get_call",
    "ols_get_data",
    "ols_get_deviance",
    "ols_get_df",
    "ols_get_formula",
    "ols_get_interaction_terms",
    "ols_get_intercept",
    "ols_get_model_matrix",
    "ols_get_parameters",
    "ols_get_predicted",
    "ols_get_predictors",
    "ols_get_residuals",
    "ols_get_response",
    "ols_get_sigma",
    "ols_get_variables",
    "ols_get_vcov",
    "ols_hadi",
    "ols_has_intercept",
    "ols_hsp",
    "ols_launch_app",
    "ols_leverage",
    "ols_mallows_cp",
    "ols_model_info",
    "ols_model_performance",
    "ols_msep",
    "ols_plot_added_variable",
    "ols_plot_comp_plus_resid",
    "ols_plot_cooksd_bar",
    "ols_plot_cooksd_chart",
    "ols_plot_dfbetas",
    "ols_plot_dffits",
    "ols_plot_diagnostics",
    "ols_plot_fm",
    "ols_plot_hadi",
    "ols_plot_obs_fit",
    "ols_plot_reg_line",
    "ols_plot_resid_box",
    "ols_plot_resid_fit",
    "ols_plot_resid_fit_spread",
    "ols_plot_resid_hist",
    "ols_plot_resid_lev",
    "ols_plot_resid_pot",
    "ols_plot_resid_qq",
    "ols_plot_resid_regressor",
    "ols_plot_resid_spread",
    "ols_plot_resid_stand",
    "ols_plot_resid_stud",
    "ols_plot_resid_stud_fit",
    "ols_plot_response",
    "ols_pred_rsq",
    "ols_prep_avplot_data",
    "ols_prep_cdplot_data",
    "ols_prep_cdplot_outliers",
    "ols_prep_dfbeta_data",
    "ols_prep_dfbeta_outliers",
    "ols_prep_dsrvf_data",
    "ols_prep_outlier_obs",
    "ols_prep_regress_x",
    "ols_prep_regress_y",
    "ols_prep_rfsplot_fmdata",
    "ols_prep_rfsplot_rsdata",
    "ols_prep_rstudlev_data",
    "ols_prep_rvsrplot_data",
    "ols_prep_srchart_data",
    "ols_prep_srplot_data",
    "ols_press",
    "ols_pure_error_anova",
    "ols_regress",
    "ols_sbc",
    "ols_sbic",
    "ols_step_all_possible",
    "ols_step_all_possible_betas",
    "ols_step_backward_adj_r2",
    "ols_step_backward_aic",
    "ols_step_backward_p",
    "ols_step_backward_r2",
    "ols_step_backward_sbc",
    "ols_step_backward_sbic",
    "ols_step_best_subset",
    "ols_step_both_adj_r2",
    "ols_step_both_aic",
    "ols_step_both_p",
    "ols_step_both_r2",
    "ols_step_both_sbc",
    "ols_step_both_sbic",
    "ols_step_forward_adj_r2",
    "ols_step_forward_aic",
    "ols_step_forward_p",
    "ols_step_forward_r2",
    "ols_step_forward_sbc",
    "ols_step_forward_sbic",
    "ols_test_bartlett",
    "ols_test_breusch_pagan",
    "ols_test_correlation",
    "ols_test_f",
    "ols_test_normality",
    "ols_test_outlier",
    "ols_test_score",
    "ols_vif_tol",
    "rvsr_plot_shiny"
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      "title": "Test Data Set",
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      "class": [
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        "x1",
        "x2",
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      "class": [
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        "oxygen",
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        "ses",
        "schtyp",
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        "Agr",
        "Forest",
        "Rsdntial",
        "ComIndl",
        "Nitrogen"
      ],
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      "tojson": true
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      "title": "Test Data Set",
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        "x2",
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      "rows": 20000,
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      "tojson": true
    },
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      "name": "surgical",
      "title": "Surgical Unit Data Set",
      "object": "surgical",
      "class": [
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      ],
      "fields": [
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        "pindex",
        "enzyme_test",
        "liver_test",
        "age",
        "gender",
        "alc_mod",
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      "rows": 54,
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  "_help": [
    {
      "page": "ols_aic",
      "title": "Akaike information criterion",
      "concept": [
        "model selection criteria"
      ],
      "topics": [
        "ols_aic"
      ]
    },
    {
      "page": "ols_anova",
      "title": "ANOVA",
      "topics": [
        "ols_anova"
      ]
    },
    {
      "page": "ols_apc",
      "title": "Amemiya's prediction criterion",
      "concept": [
        "model selection criteria"
      ],
      "topics": [
        "ols_apc"
      ]
    },
    {
      "page": "ols_coll_diag",
      "title": "Collinearity diagnostics",
      "topics": [
        "ols_coll_diag",
        "ols_eigen_cindex",
        "ols_vif_tol"
      ]
    },
    {
      "page": "ols_compare_model_performance",
      "title": "Compare model performance",
      "topics": [
        "ols_compare_model_performance"
      ]
    },
    {
      "page": "ols_correlations",
      "title": "Part and partial correlations",
      "topics": [
        "ols_correlations"
      ]
    },
    {
      "page": "ols_count_obs",
      "title": "Observations",
      "topics": [
        "ols_count_obs"
      ]
    },
    {
      "page": "ols_count_parameters",
      "title": "Parameters count",
      "topics": [
        "ols_count_parameters"
      ]
    },
    {
      "page": "ols_fpe",
      "title": "Final prediction error",
      "concept": [
        "model selection criteria"
      ],
      "topics": [
        "ols_fpe"
      ]
    },
    {
      "page": "ols_get_call",
      "title": "Model function call",
      "topics": [
        "ols_get_call"
      ]
    },
    {
      "page": "ols_get_data",
      "title": "Model data",
      "topics": [
        "ols_get_data"
      ]
    },
    {
      "page": "ols_get_deviance",
      "title": "Deviance",
      "topics": [
        "ols_get_deviance"
      ]
    },
    {
      "page": "ols_get_df",
      "title": "Degrees of freedom",
      "topics": [
        "ols_get_df"
      ]
    },
    {
      "page": "ols_get_formula",
      "title": "Model formula",
      "concept": [
        "model info"
      ],
      "topics": [
        "ols_get_formula"
      ]
    },
    {
      "page": "ols_get_interaction_terms",
      "title": "Interaction terms",
      "topics": [
        "ols_get_interaction_terms"
      ]
    },
    {
      "page": "ols_get_intercept",
      "title": "Model intercept",
      "topics": [
        "ols_get_intercept"
      ]
    },
    {
      "page": "ols_get_model_matrix",
      "title": "Model matrix",
      "topics": [
        "ols_get_model_matrix"
      ]
    },
    {
      "page": "ols_get_parameters",
      "title": "Model parameters",
      "topics": [
        "ols_get_parameters"
      ]
    },
    {
      "page": "ols_get_predicted",
      "title": "Fitted values",
      "topics": [
        "ols_get_predicted"
      ]
    },
    {
      "page": "ols_get_predictors",
      "title": "Predictor variable data",
      "topics": [
        "ols_get_predictors"
      ]
    },
    {
      "page": "ols_get_residuals",
      "title": "Model residuals",
      "topics": [
        "ols_get_residuals"
      ]
    },
    {
      "page": "ols_get_response",
      "title": "Response variable data",
      "topics": [
        "ols_get_response"
      ]
    },
    {
      "page": "ols_get_sigma",
      "title": "Sigma",
      "topics": [
        "ols_get_sigma"
      ]
    },
    {
      "page": "ols_get_variables",
      "title": "Model variables",
      "topics": [
        "ols_get_variables"
      ]
    },
    {
      "page": "ols_get_vcov",
      "title": "Variance covariance matrix",
      "topics": [
        "ols_get_vcov"
      ]
    },
    {
      "page": "ols_hadi",
      "title": "Hadi's influence measure",
      "concept": [
        "influence measures"
      ],
      "topics": [
        "ols_hadi"
      ]
    },
    {
      "page": "ols_has_intercept",
      "title": "Model intercept check",
      "topics": [
        "ols_has_intercept"
      ]
    },
    {
      "page": "ols_hsp",
      "title": "Hocking's Sp",
      "concept": [
        "model selection criteria"
      ],
      "topics": [
        "ols_hsp"
      ]
    },
    {
      "page": "ols_launch_app",
      "title": "Launch shiny app",
      "topics": [
        "ols_launch_app"
      ]
    },
    {
      "page": "ols_leverage",
      "title": "Leverage",
      "concept": [
        "influence measures"
      ],
      "topics": [
        "ols_leverage"
      ]
    },
    {
      "page": "ols_mallows_cp",
      "title": "Mallow's Cp",
      "concept": [
        "model selection criteria"
      ],
      "topics": [
        "ols_mallows_cp"
      ]
    },
    {
      "page": "ols_model_info",
      "title": "Model object info",
      "topics": [
        "ols_model_info"
      ]
    },
    {
      "page": "ols_model_performance",
      "title": "Model Performance",
      "topics": [
        "ols_model_performance"
      ]
    },
    {
      "page": "ols_msep",
      "title": "MSEP",
      "concept": [
        "model selection criteria"
      ],
      "topics": [
        "ols_msep"
      ]
    },
    {
      "page": "ols_plot_added_variable",
      "title": "Added variable plots",
      "topics": [
        "ols_plot_added_variable"
      ]
    },
    {
      "page": "ols_plot_comp_plus_resid",
      "title": "Residual plus component plot",
      "topics": [
        "ols_plot_comp_plus_resid"
      ]
    },
    {
      "page": "ols_plot_cooksd_bar",
      "title": "Cooks' D bar plot",
      "topics": [
        "ols_plot_cooksd_bar"
      ]
    },
    {
      "page": "ols_plot_cooksd_chart",
      "title": "Cooks' D chart",
      "topics": [
        "ols_plot_cooksd_chart"
      ]
    },
    {
      "page": "ols_plot_dfbetas",
      "title": "DFBETAs panel",
      "topics": [
        "ols_plot_dfbetas"
      ]
    },
    {
      "page": "ols_plot_dffits",
      "title": "DFFITS plot",
      "topics": [
        "ols_plot_dffits"
      ]
    },
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