To use these functions, the Probabilistic Feature is required.
The probabilistic feature provides arbitrary functions to work with discrete and continuous probabilistic values in a data stream and provides algebraic operator (+, *, -, /) to perform probabilistic addition, subtraction, multiplication, division, and exponentiation.
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SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75]) + ToProbabilisticDouble([4.0,0.25;5.0,0.75]) FROM Stream => (6.0:0.0625;7.0:0.375;8.0:0.5625) SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75]) - ToProbabilisticDouble([4.0,0.25;5.0,0.75]) FROM Stream => (-3.0:0.1875;-2.0:0.625;-1.0:0.1875) SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75]) * ToProbabilisticDouble([4.0,0.25;5.0,0.75]) FROM Stream => (15.0:0.5625;12.0:0.1875;10.0:0.1875;8.0:0.0625) SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75]) / ToProbabilisticDouble([4.0,0.25;5.0,0.75]) FROM Stream => (0.75:0.1875;0.6:0.5625;0.5:0.0625;0.4:0.1875) SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75])^2 FROM Stream => (4.0:0.25;9.0:0.75) SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75]) + 2 FROM Stream => (4.0:0.25;5.0:0.75) SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75]) - 2 FROM Stream => (0.0:0.25;1.0:0.75) SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75]) * 2 FROM Stream => (6.0:0.75;4.0:0.25) SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75]) / 2 FROM Stream => (1.5:0.75;1.0:0.25) |
SQRT(Probabilistic Number)
Computes the probabilistic square root of the given probabilistic value.
sMIn(Probabilistic Number, Probabilistic Number)
Computes the minimum of two probabilistic values.
sMax(Probabilistic Number, Probabilistic Number)
Computes the maximum of two probabilistic values.
ToProbabilisticDouble(Matrix)
Constructs a discrete probabilistic value using the first column of the given matrix for the values and the second column of the matrix for the probabilities for each value.
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SELECT ToProbabilisticDouble([2.0,0.25;3.0,0.75]) FROM Stream => (3.0:0.75;2.0:0.25) |
DoubleToByte(Probabilistic Number)
Converts the given probabilistic double value to a probabilistic byte value
DoubleToShort(Probabilistic Number)
Converts the given probabilistic double value to a probabilistic short value
DoubleToInteger(Probabilistic Number)
Converts the given probabilistic double value to a probabilistic integer value
DoubleToLong(Probabilistic Value)
Converts the given probabilistic double value to a probabilistic long value
DoubleToFloat(Probabilistic Number)
Converts the given probabilistic double value to a probabilistic float value
Int(Probabilistic Distribution|Vector, Number|Vector, Number|Vector)
Estimates the multivariate normal distribution probability with lower and upper integration limit.
as2DVector(Probabilistic Distribution, Probabilistic Distribution)
Converts the two object into a 2D vector.
as3DVector(Probabilistic Distribution, Probabilistic Distribution, Probabilistic Distribution)
Similar to the as2DVector function, this function creates a 3D vector with the given objects.
Similarity(Probabilistic Distribution, Probabilistic Distribution)
Calculates the Bhattacharyya distance between two distributions.
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SELECT similarity(as2DVector(x1,y1), as2DVector(x2,y2)) FROM stream |
Distance(Probabilistic Distribution, Number)
Calculates the Mahalanobis distance between the distribution and the value. The value can be a scalar value or a vector.
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SELECT distance(as3DVector(x, y, z), [1.0;2.0;3.0]) FROM stream |