May 2019
Beginner to intermediate
266 pages
5h 57m
English
Content preview from Hands-On Exploratory Data Analysis with R
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Bartlett's test
Bartlett's test is useful when executing a comparison between two or more samples to specify whether they are taken from populations with equal variance. Bartlett's test works successfully for normally distributed data. This test includes a null hypothesis, with a calculation of equal variances, and the alternative hypothesis, where variances are not considered equal. This test is considered useful for checking the assumptions regarding variance analysis.
The user can perform Bartlett's test with the bartlett.test function in R. The normal syntax for this is as follows :
> bartlett.test(values~groups, dataset)
Here, the parameters refer to the following:
- values: The name of the variable containing the data value
- groups
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