Each bin can optionally be assigned a label.

quantiles
array[number]
default: "[0.25, 0.5, 0.75]"required

Quantiles (cut points). The quantiles used as cut points when creating bins of the input values, expressed as proportions in [0, 1].

labels
array[string]
default: "['q1', 'q2', 'q3', 'q4']"

Names for the resulting bins. Important: Needs one more name than quantile cut points (3 cuts generate 4 bins)!