ah-docs

Accumulate Attributes

Description

Accumulate AttributesAccumulate attributes on a feature class (or table) with HydroID and NextdownID populated for tracing.

Usage

Parameters

Parameter Name	Type	Direction	Data Type	Dialog Reference
Input Trace Table	Required	Input	Table View	Table with HYDROID and NextdownID populage (for tracing).
Accumulate Parameters	Required	Input	Value Table	Value Table with 4 columns: TargetField, SourceField, Statistics, WeightField (for weighted average operation). TargetField - Field to store the accumulate operation results SourceField - Field whose values will be operated on Statistics - Stats Operation, valid values: [Sum, Maximum, Minimum, Count, Average, Medium, Mode, Weighted Average]
Load From Configuration File	Optional	Input	Text File	File containing the saved value table, example values: XSUM XValue Sum #;XMIN XValue Minimum #;XMAX XValue Maximum #
Output Configuration File	Optional	Output	Text File	File Path to save the Accumulate Parameters of this computation for later use.
KeyID Field	Optional	Input	Field	KeyID field (HYDROID)
NextID Field	Optional	Input	Field	NextID (NextdownID)
ArcID Field	Optional	Input	Field	Optional, default ObjectID, not yet implemented.
Split Table	Optional	Input	Table View	Split Table [FeatureID, NextdownID], when split table is provided, the following stat operations are not allowed: Average, Medium, Mode, Weighted Average. Users can use the (ACCFraction) field in the Trace Table to specify the flow distribution on the downstream splits. Valid AccFraction values 0<0<1. If the ACCFraction field is not populated, AccFraction = 1/n_splits, e.g., when 2 downstream splits exists, each of the downstream split would get 0.5*upstream_accumulated_value.