Evaluation Metrics

accuracy(hpi_obj[, test_method, test_type, ...])	Calculate the accuracy of an index.
volatility(index[, window, in_place, smooth])	Calculate the volatility of an index.
revision(series_obj[, in_place, smooth])	Calculate the revision for a series of indices.
series_accuracy(series_obj[, test_method, ...])	Calculate the accuracy for a series of indices.
series_volatility(series_obj[, window, ...])	Calculate volatility for a series of indices.