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Posted to issues@systemml.apache.org by "Deron Eriksson (JIRA)" <ji...@apache.org> on 2016/02/17 22:32:18 UTC
[jira] [Created] (SYSTEMML-529) Maintain column name data when read
csv with headers
Deron Eriksson created SYSTEMML-529:
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Summary: Maintain column name data when read csv with headers
Key: SYSTEMML-529
URL: https://issues.apache.org/jira/browse/SYSTEMML-529
Project: SystemML
Issue Type: Improvement
Components: APIs
Reporter: Deron Eriksson
Column names are a useful form of metadata that describe the data in the columns of a CSV file. This information can be very useful with outputting information about the data, for example when printing out to the console.
When reading from a CSV file with a header to a matrix variable, it would be nice if the matrix object contained the column names.
For example, for a read such as the following:
{code}
m = read("m.csv", format="csv", header=TRUE);
{code}
It would be nice if the user could obtain the column names with something such as:
{code}
c = colnames(m);
print("column names: " + c);
{code}
and see something such as:
{code}
column names: location, gender, age
{code}
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