Provides basic quantities which are used in forming a wide variety of diagnostics for checking the quality of fitted model objects.
Usage
# S3 method for spmod
influence(model, ...)
Value
A tibble with residuals (.resid
), leverage values (.hat
),
cook's distance (.cooksd
), and standardized residuals (.std.resid
).
Details
This function calls residuals.spmod()
, hatvalues.spmod()
,
and cooks.distance.spmod()
and puts the results into a tibble. It is
primarily used when calling augment.spmod()
.
Examples
spmod <- splm(z ~ water + tarp,
data = caribou,
spcov_type = "exponential", xcoord = x, ycoord = y
)
influence(spmod)
#> # A tibble: 30 x 4
#> .resid .hat .cooksd .std.resid
#> <dbl> <dbl> <dbl> <dbl>
#> 1 0.454 0.724 1.02 2.37
#> 2 0.190 0.179 0.0306 -0.827
#> 3 -0.237 0.128 0.195 -2.47
#> 4 -0.0838 0.182 0.0109 -0.490
#> 5 0.0407 0.121 0.00444 0.383
#> 6 0.177 0.0936 0.0000222 -0.0308
#> 7 0.0512 0.154 0.00542 -0.376
#> 8 -0.163 0.0778 0.0221 -1.07
#> 9 -0.290 0.110 0.0546 -1.41
#> 10 0.0522 0.136 0.0236 0.835
#> # ... with 20 more rows