We would like to be able to check the values of parameters or somehow introspect the layer's params. For e.g. the geom_hist accepts a binwidth , and we'd like to check that they are using the correct value there. Another example is checking if a geom_boxplot is using a specific outlier.alpha (e.g. 0.01).
We would also like to be able check a layer created using a stat_ function, for example the stat_bin for creating a geom_bar where we can also grade the parameters like bins.
We would like to be able to check the values of parameters or somehow introspect the layer's params. For e.g. the
geom_histaccepts abinwidth, and we'd like to check that they are using the correct value there. Another example is checking if ageom_boxplotis using a specificoutlier.alpha(e.g. 0.01).We would also like to be able check a layer created using a
stat_function, for example thestat_binfor creating ageom_barwhere we can also grade the parameters likebins.