How fast jHepWork is for data manipulation compared to Java?

You may ask: how fast jHepWork is for data analysis compared to Java and Jython? The answer is given in this online manual: For manipulations with arrays of primitive values, it is a factor 4-5 faster than Java (ArrayList) and a factor 8 faster than Python/Jython list. The speed is largely due to DataArray classes from the Colt project, which is compatible with the Trove package.

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