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| aratio-package | Assessment ratio analysis |
| agraph | Histograms with density plots for assessment ratio data |
| aratio | Assessment ratio analysis |
| condens | Conditional density estimation |
| cubespline | Smooth cubic spline estimation |
| dupage99 | DuPage County assessment ratio data set |
| fourier | Fourier expansion smoothing |
| lwr1 | Locally Weighted Regression |
| lwr1_minh | Locally Weighted Regression bandwidth or window selection |
| nptrim_obs | Nonparametric outlier trimming procedure |
| qreglwr | Nonparametric quantiles based on weighted quantile regressions |
| ratio_stats | Assessment ratio study statistics and confidence intervals. |