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Aggregating Data in SparkSQL - Python Automation and Machine Learning for ICs - - An Online Book: Python Automation and Machine Learning for ICs by Yougui Liao - |
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| Python Automation and Machine Learning for ICs http://www.globalsino.com/ICs/ | ||||||||
| Chapter/Index: Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Appendix | ||||||||
================================================================================= Aggregation is a Spark SQL process frequently used to present aggregated statistics. Commonly used aggregation functions such as count(), avg(), max(), and others are built into Dataframes. Users can also perform aggregation programmatically using SQL queries and table views. ===========================================
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