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
TargetKey Required Specifies the target key (the names of the edges table columns that identify the target vertex). If you specify targets_table, then the function uses only the vertices in targets_table as targets (which must be a subset of those that this argument specifies).
Directed Optional Specifies whether the graph is directed. The default value is 'true'.
EdgeWeight Optional Specifies the name of the edges table column that contains edge weights. The weights are positive values. By default, the weight of each edge is 1 (that is, the graph is unweighted).
MaxDistance Optional Specifies the maximum distance (an integer) between the source and target vertices. A negative max_distance specifies an infinite distance. If vertices are separated by more than max_distance, the function does not output them. The default value is 10.
GroupSize Optional Specifies the number of source vertices that execute a SNSP algorithm in parallel. If group_size exceeds the number of source vertices in each partition, s, then s is the group size. By default, the function calculates the optimal group size based on various cluster and query characteristics.

Running a group of vertices on each vworker, in parallel, uses less memory than running all vertices on each vworker.

SampleRate Optional Specifies the sample rate (the percentage of source vertices to sample), a numeric value in the range (0, 1]. The default value is 1.
Accumulate Optional Specifies the names of the vertices table columns to copy to the output table.