7.00.02 - RtChangePointDetection Arguments - Aster Analytics

Teradata Aster® Analytics Foundation User GuideUpdate 2

Product
Aster Analytics
Release Number
7.00.02
Release Date
September 2017
Content Type
Programming Reference
User Guide
Publication ID
B700-1022-700K
Language
English (United States)
ValueColumn
Specifies the name of the input table column that contains the time series data.
Accumulate
Specifies the names of the input table columns to copy to the output table.
Tip: To identify change points in the output table, specify the columns that appear in partition_exp and order_by_exp.
SegmentationMethod
[Optional] Specifies the segmentation method, normal distribution (in each segment, the data is in a normal distribution).
WindowSize
[Optional] Specifies the size of the sliding window. The ideal window size depends heavily on the data. Experiment with this value. Default: 10.
Threshold
[Optional] Specifies a DOUBLE PRECISION value that the function compares to ln(L 1)−ln(L 0). The definition of Log(L 1) and Log(L 0) are in Background. They are the logarithms of L 1 and L 2. Default: 10.
OutputOption
[Optional] Specifies the output table columns. See the Output section. Default: 'CHANGEPOINT'.