I have been coming across function calls that use arguments that are not in the function definition. I would like to know how that works (i.e. how the compiler interprets this).
For example, this function call:
interp.plot_confusion_matrix(figsize=(12,12), dpi=60)
uses the variables "figsize" and "dpi", but neither of them turn up in the definition of plot_confusion_matrix
: help(interp.plot_confusion_matrix)
gives:
plot_confusion_matrix(normalize: bool = False, title: str = 'Confusion matrix',
cmap: Any = 'Blues', norm_dec: int = 2, slice_size: int = None, **kwargs) -> None
method of fastai.vision.learner.ClassificationInterpretation instance
Plot the confusion matrix, with `title` and using `cmap`.
Why is it not an error to use "figsize" and "dpi" in the function call if they are not arguments of the function? How does this work in python?