GitHub user coderxiang opened a pull request:
https://github.com/apache/spark/pull/3919
[SPARK-5116][MLlib] Add extractor for SparseVector and DenseVector
Add extractor for SparseVector and DenseVector in MLlib to save some code
while performing pattern matching on Vectors. For example, previously we may
use:
vec match {
case dv: DenseVector =>
val values = dv.values
...
case sv: SparseVector =>
val indices = sv.indices
val values = sv.values
val size = sv.size
...
}
with extractor it is:
vec match {
case DenseVector(values) =>
...
case SparseVector(size, indices, values) =>
...
}
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/coderxiang/spark extractor
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/3919.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3919
----
commit d7ffe500a7d432d7810140893cdd74a6b781d992
Author: Shuo Xiang <[email protected]>
Date: 2015-01-07T02:02:04Z
Add extractor for SparseVector and DenseVector
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