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https://issues.apache.org/jira/browse/MAHOUT-1490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14000870#comment-14000870
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Pat Ferrel commented on MAHOUT-1490:
------------------------------------
If you have time you might want to comment on the IndexedDataset used for
import/export in MAHOUT-1541. It is basically a DrmLike[Int] wrapped with two
BiMaps. It uses map on the drm to output rows to delimited text files,
substituting the drm row/column indexes with IDs from the BiMap dictionaries.
It isn't clear if you guys are implementing functionality like this but thought
you should know.
Last time I looked there was a drm.writeDrm(...) that outputs a sequence file.
The way it's done in MAHOUT-1541 is to have a "store" object that reads or
writes an IndexedDataset and the "store" can have multiple implementations. If
the dataframe supports the "store" I'd be happy to use it.
> Data frame R-like bindings
> --------------------------
>
> Key: MAHOUT-1490
> URL: https://issues.apache.org/jira/browse/MAHOUT-1490
> Project: Mahout
> Issue Type: New Feature
> Reporter: Saikat Kanjilal
> Assignee: Dmitriy Lyubimov
> Fix For: 1.0
>
> Original Estimate: 20h
> Remaining Estimate: 20h
>
> Create Data frame R-like bindings for spark
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