qdist(alpha,K,v)
qdist returns a value from the studentized range or q-distribution.
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This function returns the table lookup value of the Studentized Range or q-distribution for Tukey HSD Post-Hoc means comparison. It has a maximum of 20 groups (K). If more groups are used K=20 is used for the table lookup.
Input:
alpha = Confidence level
K = Number of groups
v = Degrees of freedom
Example:
q=qdist(0.10,5,15)
ans =
3.8280
q=qdist(0.05,5,15)
ans =
4.3670
q=qdist(0.01,5,15)
ans =
5.5560
Data for the tables was taken from
http://cse.niaes.affrc.go.jp/miwa/probcalc/s-range/
Cite As
Richard McCulloch (2026). qdist(alpha,K,v) (https://au.mathworks.com/matlabcentral/fileexchange/49144-qdist-alpha-k-v), MATLAB Central File Exchange. Retrieved .
Categories
Find more on Probability Distributions and Hypothesis Tests in Help Center and MATLAB Answers
General Information
- Version 1.0.0.0 (18.2 KB)
MATLAB Release Compatibility
- Compatible with any release
Platform Compatibility
- Windows
- macOS
- Linux
| Version | Published | Release Notes | Action |
|---|---|---|---|
| 1.0.0.0 |
