teradata-anova

name	Teradata ANOVA
description	Analysis of variance for comparing group means

Teradata ANOVA

Property	Value
Skill Name	Teradata ANOVA
Description	Analysis of variance for comparing group means
Category	Hypothesis Testing
Primary Function	TD_ANOVA
Framework	SQLE

Core Capabilities

• Automated table structure analysis via DBC.ColumnsV
• Dynamic SQL generation for TD_ANOVA
• Complete workflow from data preparation to results interpretation
• Data quality validation and preprocessing guidance
• Parameter optimization and tuning

Key Parameters

• ColumnNames: Numeric column(s) to test
• GroupColumns: Categorical grouping column(s)
• StatMethod: 'ONEWAY' (one factor) or 'TWOWAY' (two factors)

Use Cases

1. Comparing means across multiple groups
2. A/B/C testing significance
3. Treatment effect analysis
4. Quality control group comparisons

Example Usage

-- TD_ANOVA execution
SELECT * FROM TD_ANOVA (
    ON {USER_DATABASE}.{USER_TABLE} AS InputTable
    USING
    ColumnNames ('{NUMERIC_COLUMN}')
    GroupColumns ('{GROUP_COLUMN}')
    StatMethod ('ONEWAY')              -- 'ONEWAY' or 'TWOWAY'
) AS dt;

Scripts Included

Core Analytics Scripts

• table_analysis.sql: Automatic table structure discovery
• preprocessing.sql: Data preparation and feature engineering
• model_training.sql: TD_ANOVA execution
• evaluation.sql: Results analysis and metrics
• complete_workflow_template.sql: End-to-end workflow

Utility Scripts

• data_quality_checks.sql: Comprehensive data validation
• parameter_tuning.sql: Parameter optimization
• diagnostic_queries.sql: Results diagnostics and interpretation

Best Practices

• Always run table_analysis.sql first to understand your data structure
• Validate data quality before executing the analytical function
• Use parameter_tuning.sql to find optimal configuration
• Review diagnostic_queries.sql output for model/results validation

Limitations

• Requires Teradata Vantage 17.20+ with ClearScape Analytics
• Input data must meet function-specific requirements
• Results depend on data quality and parameter configuration

Teradata ANOVA - ClearScape Analytics skill for Teradata Vantage