package impl
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Type Members
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class
BinnedArray[T] extends AnyRef
Puts inputs into sorted bins and stores count of each bin
Puts inputs into sorted bins and stores count of each bin
- T
type of input value
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class
CountStat extends Stat
Counts features
- class DescriptiveStats extends Stat with Serializable
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class
EnumerationStat[T] extends Stat
An enumeration is merely a HashMap mapping values to number of occurrences
An enumeration is merely a HashMap mapping values to number of occurrences
- T
some type T (which is restricted by the stat parser upstream of Histogram instantiation)
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class
Frequency[T] extends Stat
Estimates frequency counts at scale
Estimates frequency counts at scale
- T
type parameter, should match the type binding of the attribute
- class GroupBy[T] extends Stat
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class
Histogram[T] extends Stat with LazyLogging
The histogram's state is stored in an indexed array, where the index is the bin number and the values are the counts.
The histogram's state is stored in an indexed array, where the index is the bin number and the values are the counts.
e.g. a range of 0 to 3 with 3 bins will result in these bins: [0, 1), [1, 2), [2, 3) and the array will contain three entries.
- T
a comparable type which must have a StatHelperFunctions type class
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class
IteratorStackCount extends Stat
The IteratorStackCount keeps track of the number of times Accumulo sets up an iterator stack as a result of a query.
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class
MinMax[T] extends Stat with LazyLogging with Serializable
The MinMax stat merely returns the min/max of an attribute's values.
The MinMax stat merely returns the min/max of an attribute's values. Works with dates, integers, longs, doubles, and floats.
- T
the type of the attribute the stat is targeting (needs to be comparable)
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class
SeqStat extends Stat
If the stats parser receives a string with multiple stats, a SeqStat will be used.
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trait
StatSerializer extends AnyRef
Serialize and deserialize stats
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class
TopK[T] extends Stat with LazyLogging
TopK stat
TopK stat
- T
attribute type binding
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class
Z3Frequency extends Stat with LazyLogging
Estimates frequency counts at scale.
Estimates frequency counts at scale. Tracks geometry and date attributes as a single value.
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class
Z3Histogram extends Stat with LazyLogging
The histogram's state is stored in an indexed array, where the index is the bin number and the values are the counts.
The histogram's state is stored in an indexed array, where the index is the bin number and the values are the counts.
Tracks geometry and date attributes as a single value.
Value Members
- object BinnedArray
- object DescriptiveStats extends Serializable
- object Frequency
- object Histogram
- object MinMax extends Serializable
- object StatParser
- object StatSerializer
- object TopK
- object Z3Histogram