[
https://issues.apache.org/jira/browse/SYSTEMML-153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Deron Eriksson reassigned SYSTEMML-153:
---------------------------------------
Assignee: Deron Eriksson
> Allow input data file without requiring corresponding metadata file
> -------------------------------------------------------------------
>
> Key: SYSTEMML-153
> URL: https://issues.apache.org/jira/browse/SYSTEMML-153
> Project: SystemML
> Issue Type: Improvement
> Reporter: Deron Eriksson
> Assignee: Deron Eriksson
> Fix For: Not Applicable
>
>
> Right now a metadata file is required for an input data file. For example, a
> matrix.csv file would typically require a matrix.csv.mtd file. Creating a
> .mtd manually is a minor annoyance in terms of consumability of SystemML. It
> would be nice if there were some mechanism so that a metadata file does not
> need to be provided in all cases.
> One possibility is that if no metadata file is present, SystemML could assume
> a particular default format (for example, a comma-separated delimited file).
> The number of rows and columns could be determined by parsing the file. This
> might work well for small files but not necessarily well for enormous files.
> A possible way to solve this would be to use a file extension to indicate
> that you have a small input data file and you don't want to have to provide a
> metadata file. For example, you could have a matrix.csv-nomtd file. The .csv
> part of the extension indicates that it's a csv file, and the -nomtd part of
> the extension indicates that you don't want to provide metadata.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
