Github user HyukjinKwon commented on the issue: https://github.com/apache/spark/pull/17590 This is my thought on it. - **variable names** in [SPARK-6813](https://issues.apache.org/jira/browse/SPARK-6813) ... > We could have a R style guide based on the one from google ... in [Google's R Style Guide](https://google.github.io/styleguide/Rguide.xml) > variable.name is preferred, variableName is accepted > GOOD: avg.clicks > OK: avgClicks So, I guess this means ... - `as.json.array` : acceptable - contributors are fine to propose this and committers decide it. - `asJsonArray` : acceptable - contributors are fine to propose this and committers decide it. - `as_json_array` : not preferred - **function names** : in [SPARK-6813](https://issues.apache.org/jira/browse/SPARK-6813) ... > 2.no limit on function name (API should be similar as in other languages) As there is no limit on this, any form is allowed but we follow existing APIs forms in other languages at our best.
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