Measure of influence based on the fact that influential observations in either the response variable or in the predictors or both.
References
Chatterjee, Samprit and Hadi, Ali. Regression Analysis by Example. 5th ed. N.p.: John Wiley & Sons, 2012. Print.
See also
Other influence measures:
ols_leverage(),
ols_pred_rsq(),
ols_press()
Examples
model <- lm(mpg ~ disp + hp + wt, data = mtcars)
ols_hadi(model)
#> $hadi
#> Mazda RX4 Mazda RX4 Wag Datsun 710 Hornet 4 Drive
#> 0.19318654 0.10375645 0.20740884 0.09775893
#> Hornet Sportabout Valiant Duster 360 Merc 240D
#> 0.20724815 0.19946745 0.19652103 0.19692137
#> Merc 230 Merc 280 Merc 280C Merc 450SE
#> 0.12314263 0.14455206 0.24742810 0.10784806
#> Merc 450SL Merc 450SLC Cadillac Fleetwood Lincoln Continental
#> 0.05027013 0.11471138 0.25914561 0.29265274
#> Chrysler Imperial Fiat 128 Honda Civic Toyota Corolla
#> 1.14426624 0.99609055 0.20171955 1.06239341
#> Toyota Corona Dodge Challenger AMC Javelin Camaro Z28
#> 0.28064340 0.35373215 0.44820010 0.15099700
#> Pontiac Firebird Fiat X1-9 Porsche 914-2 Lotus Europa
#> 0.41281074 0.10477548 0.08003177 0.37633639
#> Ford Pantera L Ferrari Dino Maserati Bora Volvo 142E
#> 0.32631790 0.19910073 1.19634000 0.14496664
#>
#> $potential
#> [1] 0.04642961 0.04793496 0.06734998 0.09700248 0.20204116 0.07204021
#> [7] 0.15814866 0.14431329 0.10998283 0.12811895 0.12811895 0.09886225
#> [13] 0.04904646 0.05345386 0.25898633 0.26443008 0.23883499 0.09118421
#> [19] 0.17116856 0.11159933 0.06050321 0.10075604 0.08338035 0.11503917
#> [25] 0.24318619 0.10245226 0.08001939 0.19678226 0.31299327 0.15926270
#> [31] 0.99626944 0.08504229
#>
#> $residual
#> Mazda RX4 Mazda RX4 Wag Datsun 710 Hornet 4 Drive
#> 0.1467569282 0.0558214978 0.1400588567 0.0007564513
#> Hornet Sportabout Valiant Duster 360 Merc 240D
#> 0.0052069911 0.1274272438 0.0383723684 0.0526080784
#> Merc 230 Merc 280 Merc 280C Merc 450SE
#> 0.0131598054 0.0164331043 0.1193091514 0.0089858122
#> Merc 450SL Merc 450SLC Cadillac Fleetwood Lincoln Continental
#> 0.0012236671 0.0612575182 0.0001592827 0.0282226574
#> Chrysler Imperial Fiat 128 Honda Civic Toyota Corolla
#> 0.9054312452 0.9049063421 0.0305509895 0.9507940779
#> Toyota Corona Dodge Challenger AMC Javelin Camaro Z28
#> 0.2201401850 0.2529761045 0.3648197429 0.0359578331
#> Pontiac Firebird Fiat X1-9 Porsche 914-2 Lotus Europa
#> 0.1696245441 0.0023232180 0.0000123722 0.1795541315
#> Ford Pantera L Ferrari Dino Maserati Bora Volvo 142E
#> 0.0133246374 0.0398380292 0.2000705631 0.0599243499
#>