ANOVA with Summary Statistics: A STATA Macro

Nadeem Shafique Butt, Shahid Kamal, Muhammad Qaiser Shahbaz

Abstract


Almost all available statistical packages are capable of performing Analysis of Variance (ANOVA) from raw data. Some of statistical packages have capability to perform independent sample t-test, and some other tests of significance on summary data, but seldom would you come across a software that has the capability to perform ANOVA directly on summary data. However some packages can perform one-way ANOVA after generating surrogate data from summary statistics. In this short note we have given STATA program to perform one-way ANOVA on summary data; in addition this program also performs Bartllet’s tests of equality of variances. The idea can be extended to two-way and higher way ANOVA’s. Examples have been given for illustration.

Keywords


ANOVA, Summary Data

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DOI: http://dx.doi.org/10.18187/pjsor.v2i1.87

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Title

ANOVA with Summary Statistics: A STATA Macro

Keywords

ANOVA, Summary Data

Description

Almost all available statistical packages are capable of performing Analysis of Variance (ANOVA) from raw data. Some of statistical packages have capability to perform independent sample t-test, and some other tests of significance on summary data, but seldom would you come across a software that has the capability to perform ANOVA directly on summary data. However some packages can perform one-way ANOVA after generating surrogate data from summary statistics. In this short note we have given STATA program to perform one-way ANOVA on summary data; in addition this program also performs Bartllet’s tests of equality of variances. The idea can be extended to two-way and higher way ANOVA’s. Examples have been given for illustration.

Date

2006-01-01

Identifier


Source

Pakistan Journal of Statistics and Operation Research; Vol 2. No. 1, Jan 2006



Print ISSN: 1816-2711 | Electronic ISSN: 2220-5810