Package | Description |
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ai.rapids.cudf |
Modifier and Type | Method and Description |
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GroupByAggregationOnColumn |
GroupByAggregation.onColumn(int columnIndex)
Add a column to the Aggregation so it can be used on a specific column of data.
|
Modifier and Type | Method and Description |
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Table |
Table.GroupByOperation.aggregate(GroupByAggregationOnColumn... aggregates)
Aggregates the group of columns represented by indices
Usage:
aggregate(count(), max(2),...);
example:
input : 1, 1, 1
1, 2, 1
2, 4, 5
table.groupBy(0, 2).count()
col0, col1
output: 1, 1
1, 2
2, 1 ==> aggregated count
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