Class: Item
- Inherits:
-
Object
- Object
- Item
- Defined in:
- lib/quantile_estimator/item.rb
Overview
n = items k = asymptote S = data structure containing multiple tuples s = samples of items from the data stream
Instance Attribute Summary (collapse)
-
- (Object) delta
Returns the value of attribute delta.
-
- (Object) g
Returns the value of attribute g.
-
- (Object) rank
Returns the value of attribute rank.
-
- (Object) value
Returns the value of attribute value.
Instance Method Summary (collapse)
-
- (Item) initialize(value, g, delta, rank = nil)
constructor
A new instance of Item.
- - (Object) merge(item)
- - (Object) to_s
Constructor Details
- (Item) initialize(value, g, delta, rank = nil)
Returns a new instance of Item
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# File 'lib/quantile_estimator/item.rb', line 7 def initialize(value, g, delta, rank=nil) self.value = value self.g = g self.delta = delta self.rank = rank end |
Instance Attribute Details
- (Object) delta
Returns the value of attribute delta
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# File 'lib/quantile_estimator/item.rb', line 6 def delta @delta end |
- (Object) g
Returns the value of attribute g
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# File 'lib/quantile_estimator/item.rb', line 6 def g @g end |
- (Object) rank
Returns the value of attribute rank
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# File 'lib/quantile_estimator/item.rb', line 6 def rank @rank end |
- (Object) value
Returns the value of attribute value
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# File 'lib/quantile_estimator/item.rb', line 6 def value @value end |
Instance Method Details
- (Object) merge(item)
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# File 'lib/quantile_estimator/item.rb', line 14 def merge(item) Item.new(item.value, self.g + item.g, item.delta, item.rank) end |
- (Object) to_s
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# File 'lib/quantile_estimator/item.rb', line 18 def to_s [value, g, delta, rank].inspect end |