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Given a numeric column within a Spark DataFrame, compute approximate quantiles (to some relative error).
sdf_quantile(x, column, probabilities = c(0, 0.25, 0.5, 0.75, 1),
relative.error = 1e-05)An object coercable to a Spark DataFrame (typically, a
tbl_spark).
The column for which quantiles should be computed.
A numeric vector of probabilities, for which quantiles should be computed.
The relative error -- lower values imply more precision in the computed quantiles.