-For convince, certain methods, namely n, count, -mean, and avg, are converted to the name appropriate -for the selected backend. However, for scripting, specifying the appropriate -method (function) name for the backend is recommended because the conversion -is a heuristic which may change in the future. +For convenience, certain methods, namely n, count, +mean, and avg, are converted to the appropriate name +for the selected backend. However, for scripting, it is recommended to +specify the appropriate method (function) name for the backend, as the +conversion is a heuristic that may change in the future.
If only aggregate_columns is provided, methods default to