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https://issues.apache.org/jira/browse/SPARK-20456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15982507#comment-15982507
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Hyukjin Kwon commented on SPARK-20456:
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> Document `sql.functions.py`:
1. Document the common aggregate functions (`min`, `max`, `mean`, `count`,
`collect_set`, `collect_list`, `stddev`, `variance`)
I think we have documentations for ...
min -
https://spark.apache.org/docs/2.1.0/api/python/pyspark.sql.html#pyspark.sql.functions.min
max -
https://spark.apache.org/docs/2.1.0/api/python/pyspark.sql.html#pyspark.sql.functions.max
mean -
https://spark.apache.org/docs/2.1.0/api/python/pyspark.sql.html#pyspark.sql.functions.mean
count -
https://spark.apache.org/docs/2.1.0/api/python/pyspark.sql.html#pyspark.sql.functions.count
collect_set -
https://spark.apache.org/docs/2.1.0/api/python/pyspark.sql.html#pyspark.sql.functions.collect_set
collect_list -
https://spark.apache.org/docs/2.1.0/api/python/pyspark.sql.html#pyspark.sql.functions.collect_list
stddev -
https://spark.apache.org/docs/2.1.0/api/python/pyspark.sql.html#pyspark.sql.functions.stddev
variance -
https://spark.apache.org/docs/2.1.0/api/python/pyspark.sql.html#pyspark.sql.functions.variance
in
https://github.com/apache/spark/blob/3fbf0a5f9297f438bc92db11f106d4a0ae568613/python/pyspark/sql/functions.py
> 2. Rename columns in datetime examples.
Could you give some pointers?
> 5. Document `lit`
lit -
https://spark.apache.org/docs/2.1.0/api/python/pyspark.sql.html#pyspark.sql.functions.lit
It seems documented.
> Document major aggregation functions for pyspark
> ------------------------------------------------
>
> Key: SPARK-20456
> URL: https://issues.apache.org/jira/browse/SPARK-20456
> Project: Spark
> Issue Type: Documentation
> Components: Documentation
> Affects Versions: 2.1.0
> Reporter: Michael Patterson
>
> Document `sql.functions.py`:
> 1. Document the common aggregate functions (`min`, `max`, `mean`, `count`,
> `collect_set`, `collect_list`, `stddev`, `variance`)
> 2. Rename columns in datetime examples.
> 3. Add examples for `unix_timestamp` and `from_unixtime`
> 4. Add note to all trigonometry functions that units are radians.
> 5. Document `lit`
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