Results Data | Median Test | Vantage Analytics Library - Median Test Results Data - Vantage Analytics Library

Vantage Analytics Library User Guide

Deployment
VantageCloud
VantageCore
Edition
VMware
Enterprise
IntelliFlex
Lake
Product
Vantage Analytics Library
Release Number
2.2.0
Published
June 2025
ft:locale
en-US
ft:lastEdition
2025-07-02
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Product Category
Teradata Vantage

teststyle = median

If there are groupby columns, they comprise the UPI. Otherwise, ChiSq is the UPI.

Column Data Type Description
Chisq Float Chi-Squared statistic.
DF INTEGER Degrees of freedom.
MedianPValue Float Probability associated with Chi-Squared statistic.
MedianPText Char Text description if probability is outside table range.
MedianCallP_0.01 Char Chi-Squared result:
  • a=accept null hypothesis
  • p=reject null hypothesis (positive)
  • n=reject null hypothesis (negative)

Example

The following table shows how the Median test was computed on income over marital_status by years_with_bank. Results are sorted by years_with_bank. The tests show that values came from populations with the same median where MedianCallP_0.01 = a and from populations with different medians where MedianCallP_0.01 = p.

years_with_bank ChiSq DF MedianPValue MedianPText MedianCallP_0.01
0 12.13288563 3 0.007361344   p
1 12.96799683 3 0.004848392   p
2 13.12480388 3 0.004665414   p
3 8.504645761 3 0.038753824   a
4 4.458333333 3 0.225502846   a
5 15.81395349 3 0.001527445   p
6 4.531466733 3 0.220383974   a
7 11.35971787 3 0.009950322   p
8 2.855999742 3 0.25 >0.25 a
9 2.23340311 3 0.25 >0.25 a