appraise(model, ...)
# S3 method for gam
appraise(
model,
method = c("direct", "simulate", "normal"),
n_uniform = 10,
n_simulate = 50,
type = c("deviance", "pearson", "response"),
n_bins = c("sturges", "scott", "fd"),
ncol = 2,
level = 0.9,
ci_col = "black",
ci_alpha = 0.2,
point_col = "black",
point_alpha = 1,
line_col = "red",
...
)
# S3 method for lm
appraise(model, ...)

## Arguments

model |
a fitted model. Currently only class `"gam"` . |

... |
arguments passed to `cowplot::plot_grid()` , except for `align`
and `axis` , which are set internally. |

method |
character; method used to generate theoretical quantiles. |

n_uniform |
numeric; number of times to randomize uniform quantiles
in the direct computation method (`method = "direct"` ) for QQ plots. |

n_simulate |
numeric; number of data sets to simulate from the estimated
model when using the simulation method (`method = "simulate"` ) for QQ
plots. |

type |
character; type of residuals to use. Only `"deviance"` ,
`"response"` , and `"pearson"` residuals are allowed. |

n_bins |
character or numeric; either the number of bins or a string
indicating how to calculate the number of bins. |

ncol |
numeric; number of columns to draw plots in. See
`cowplot::plot_grid()` . |

level |
numeric; the coverage level for QQ plot reference intervals.
Must be strictly `0 < level < 1` . Only used with `method = "simulate"` . |

ci_alpha, ci_col |
numeric; the level of alpha transparency for the
QQ plot reference interval when `method = "simulate"` , or points drawn in
plots. |

point_col, point_alpha |
colour and transparency used to draw points in
the plots. See `graphics::par()` section **Color Specification**. This is
passed to the individual plotting functions, and therefore affects the
points of all plots. |

line_col |
colour specification for the 1:1 line in the QQ plot and the
reference line in the residuals vs linear predictor plot. |

## See also

## Examples

#> Gu & Wahba 4 term additive model