Aggregation

LazyFrame.max()	Aggregate the columns in the DataFrame to their maximum value.
LazyFrame.mean()	Aggregate the columns in the DataFrame to their mean value.
LazyFrame.median()	Aggregate the columns in the DataFrame to their median value.
LazyFrame.min()	Aggregate the columns in the DataFrame to their minimum value.
LazyFrame.quantile(quantile[, interpolation])	Aggregate the columns in the DataFrame to their quantile value.
LazyFrame.std([ddof])	Aggregate the columns in the DataFrame to their standard deviation value.
LazyFrame.sum()	Aggregate the columns in the DataFrame to their sum value.
LazyFrame.var([ddof])	Aggregate the columns in the DataFrame to their variance value.