Prepare data for cook's d bar plot.
Arguments
- model
An object of class
lm.- type
An integer between 1 and 5 selecting one of the 6 methods for computing the threshold.
Examples
model <- lm(mpg ~ disp + hp + wt, data = mtcars)
ols_prep_cdplot_data(model)
#> $ckd
#> obs cd color fct_color
#> Mazda RX4 1 1.152035e-02 normal normal
#> Mazda RX4 Wag 2 4.621112e-03 normal normal
#> Datsun 710 3 1.598334e-02 normal normal
#> Hornet 4 Drive 4 1.283888e-04 normal normal
#> Hornet Sportabout 5 1.839055e-03 normal normal
#> Valiant 6 1.560119e-02 normal normal
#> Duster 360 7 1.053270e-02 normal normal
#> Merc 240D 8 1.313511e-02 normal normal
#> Merc 230 9 2.525382e-03 normal normal
#> Merc 280 10 3.671067e-03 normal normal
#> Merc 280C 11 2.606104e-02 normal normal
#> Merc 450SE 12 1.551454e-03 normal normal
#> Merc 450SL 13 1.049983e-04 normal normal
#> Merc 450SLC 14 5.648180e-03 normal normal
#> Cadillac Fleetwood 15 7.218880e-05 normal normal
#> Lincoln Continental 16 1.298764e-02 normal normal
#> Chrysler Imperial 17 3.199707e-01 outlier outlier
#> Fiat 128 18 1.196019e-01 normal normal
#> Honda Civic 19 9.092102e-03 normal normal
#> Toyota Corolla 20 1.529771e-01 outlier outlier
#> Toyota Corona 21 2.215865e-02 normal normal
#> Dodge Challenger 22 4.218196e-02 normal normal
#> AMC Javelin 23 4.909944e-02 normal normal
#> Camaro Z28 24 7.181085e-03 normal normal
#> Pontiac Firebird 25 6.980693e-02 normal normal
#> Fiat X1-9 26 4.163138e-04 normal normal
#> Porsche 914-2 27 1.732523e-06 normal normal
#> Lotus Europa 28 5.959750e-02 normal normal
#> Ford Pantera L 29 7.279943e-03 normal normal
#> Ferrari Dino 30 1.100867e-02 normal normal
#> Maserati Bora 31 3.402911e-01 outlier outlier
#> Volvo 142E 32 8.796726e-03 normal normal
#>
#> $maxx
#> [1] 0.3436941
#>
#> $ts
#> [1] 0.125
#>