Yanbo Liang created SPARK-9003:
----------------------------------
Summary: Add map/update function to MLlib/Vector
Key: SPARK-9003
URL: https://issues.apache.org/jira/browse/SPARK-9003
Project: Spark
Issue Type: Improvement
Components: MLlib
Reporter: Yanbo Liang
Priority: Minor
MLlib/Vector is short of map/update function which is inconvenience for some
Vector operations.
For example:
val a = Vectors.dense(...)
If we want to compute math.log for each elements of a and get a Vector as
return value, we can only code as:
val b = Vectors.dense(a.toArray.map(math.log))
The code snippet is not elegant, we want it can implement:
val c = a.map(math.log)
Also currently MLlib/Matrix has implemented map/update function. I think Vector
should also has map/update.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
