Package | Description |
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ai.rapids.cudf |
Modifier and Type | Method and Description |
---|---|
static ReductionAggregation |
ReductionAggregation.all()
All reduction.
|
static ReductionAggregation |
ReductionAggregation.any()
Any reduction.
|
static ReductionAggregation |
ReductionAggregation.collectList() |
static ReductionAggregation |
ReductionAggregation.collectList(NullPolicy nullPolicy)
Collect the values into a list.
|
static ReductionAggregation |
ReductionAggregation.collectSet()
Collect the values into a set.
|
static ReductionAggregation |
ReductionAggregation.collectSet(NullPolicy nullPolicy,
NullEquality nullEquality,
NaNEquality nanEquality)
Collect the values into a set.
|
static ReductionAggregation |
ReductionAggregation.createTDigest(int delta)
tDigest reduction.
|
static ReductionAggregation |
ReductionAggregation.histogram()
Create HistogramAggregation, computing the frequencies for each unique row.
|
static ReductionAggregation |
ReductionAggregation.max()
Max Aggregation
|
static ReductionAggregation |
ReductionAggregation.mean()
Arithmetic mean reduction.
|
static ReductionAggregation |
ReductionAggregation.median()
Median reduction.
|
static ReductionAggregation |
ReductionAggregation.mergeHistogram()
Create MergeHistogramAggregation, to merge multiple histograms.
|
static ReductionAggregation |
ReductionAggregation.mergeLists()
Merge the partial lists produced by multiple CollectListAggregations.
|
static ReductionAggregation |
ReductionAggregation.mergeSets()
Merge the partial sets produced by multiple CollectSetAggregations.
|
static ReductionAggregation |
ReductionAggregation.mergeSets(NullEquality nullEquality,
NaNEquality nanEquality)
Merge the partial sets produced by multiple CollectSetAggregations.
|
static ReductionAggregation |
ReductionAggregation.mergeTDigest(int delta)
tDigest merge reduction.
|
static ReductionAggregation |
ReductionAggregation.min()
Min Aggregation
|
static ReductionAggregation |
ReductionAggregation.nth(int offset)
Get the nth, non-null, element in a group.
|
static ReductionAggregation |
ReductionAggregation.nth(int offset,
NullPolicy nullPolicy)
Get the nth element in a group.
|
static ReductionAggregation |
ReductionAggregation.nunique()
Number of unique, non-null, elements.
|
static ReductionAggregation |
ReductionAggregation.nunique(NullPolicy nullPolicy)
Number of unique elements.
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static ReductionAggregation |
ReductionAggregation.product()
Product Aggregation.
|
static ReductionAggregation |
ReductionAggregation.quantile(double... quantiles)
Aggregate to compute the specified quantiles.
|
static ReductionAggregation |
ReductionAggregation.quantile(QuantileMethod method,
double... quantiles)
Aggregate to compute various quantiles.
|
static ReductionAggregation |
ReductionAggregation.standardDeviation()
Standard deviation aggregation with 1 as the delta degrees of freedom.
|
static ReductionAggregation |
ReductionAggregation.standardDeviation(int ddof)
Standard deviation aggregation.
|
static ReductionAggregation |
ReductionAggregation.sum()
Sum Aggregation
|
static ReductionAggregation |
ReductionAggregation.sumOfSquares()
Sum of squares reduction.
|
static ReductionAggregation |
ReductionAggregation.variance()
Variance aggregation with 1 as the delta degrees of freedom.
|
static ReductionAggregation |
ReductionAggregation.variance(int ddof)
Variance aggregation.
|
Modifier and Type | Method and Description |
---|---|
Scalar |
ColumnView.reduce(ReductionAggregation aggregation)
Computes the reduction of the values in all rows of a column.
|
Scalar |
ColumnView.reduce(ReductionAggregation aggregation,
DType outType)
Computes the reduction of the values in all rows of a column.
|
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