Arguments - Aster Analytics

Teradata Aster Analytics Foundation User Guide

Product
Aster Analytics
Release Number
6.21
Published
November 2016
Language
English (United States)
Last Update
2018-04-14
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kiu1466024880662.ditamap
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AA-notempfilter_pdf_output.ditaval
dita:id
B700-1021
lifecycle
previous
Product Category
Software
Argument Category Description
ValueColumn Required Specifies the name of the input table column that contains the time series data.
Accumulate Required 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). This is the default and only possible value.
WindowSize Optional Specifies the size of the sliding window. The ideal window size depends heavily on the data. You might need to experiment with this value. The default value is 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. The default value is 10.
OutputOption Optional Specifies the output table columns. Refer to the Output section. The default value is 'CHANGEPOINT'.