I'd like to undersample the majority class before SMOTING, but I can't find a node that undersamples at a percentage level. I know that EqualSizeSampling exists, but I don't want equal size here, but I'd like to change the percentage of the majority class.
For example, if a majority class is the 80% of the dataset and the minority is the 20%, I'd like to make the majority class the 60% of the dataset and the minority the 40%.