flink-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Maximilian Michels <...@apache.org>
Subject Re: Get DataSet sum
Date Tue, 28 Apr 2015 13:25:50 GMT
Hi Giacomo,

If you have your data stored in a Tuple inside a DataSet, then a call to
dataSet.sum(int field) should do it.

See Aggregation under
http://ci.apache.org/projects/flink/flink-docs-master/apis/programming_guide.html#transformations

Best,
Max

On Tue, Apr 28, 2015 at 2:52 PM, Giacomo Licari <giacomo.licari@gmail.com>
wrote:

> Hi Guys,
> how can obtain the sum of all items (integer or double) in a DataSet?
>
> Do I have to use Flink Iterators? And how?
>
> Thank you,
> Giacomo
>

Mime
View raw message