TD_WHITES_GENERAL Output - Teradata Vantage

Database Unbounded Array Framework Time Series Functions

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-10-04
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The TD_WHITES_GENERAL function returns a primary result set consisting of one row per unique series instance acted on by the function. There are no additional auxiliary layers returned by this function.

RETURNS TABLE Schema

Name Data Type Description
derived-series-identifier Varies The resultant series identifier inherited from the SERIES_ID.
ROW_I INTEGER Index of time series.
NUM_SAMPLES INTEGER The total number of sample points found in the residual series.
AUX_COUNT INTEGER The number of explanatory variable combinations,excluding the constant, in the auxiliary regression.
AUX_RSS FLOAT The calculated residual sum of squares (RSS) from the residuals associated with the auxiliary regression.
DEGREES_FREEDOM INTEGER The calculated degrees of freedom relative to the auxiliary regression.
SIGNIFICANCE_LEVEL FLOAT The significance level used for the test.
WG_VALUE FLOAT The calculated Whites-General Test Statistic value.
P_VALUE FLOAT The p-value corresponding to the calculated test statistic.
CHISQUARED_VALUE FLOAT The chi-squared critical value from the chi-squared-statistic tables.
CRITICAL_P FLOAT The p-value corresponding to the critical value.
NULL_HYPOTH VARCHAR(17) The result of the test:
  • ACCEPT means the null hypothesis is accepted, and there is homoscedasticity variance evident.
  • REJECT means the null hypothesis is rejected, and there is evidence of heteroscedasticity.