4.8 | 5 ratings Rate this file 32 downloads (last 30 days) File Size: 2.75 KB File ID: #3954

DagosPtest

12 Sep 2003 (Updated 21 Dec 2006)

D'Agostino-Pearson's K2 test for assessing normality of a data vector.

File Information

Description

The D'Agostino-Pearson's K2 test is used to assessing normality of data using skewness and kurtosis. It approximates to the chi-squared distribution.

File needs to input the data vector and significance level (default = 0.05).
It outputs whether or not the normality is met.

MATLAB release

MATLAB 5.3 (R11)

Tags for This File
Everyone's Tags	assessing normality, dagostinopearson test, normality test, probability, statistics
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Comments and Ratings (6)
05 May 2004	Faraaz Yusufi	I read about this test in Zar's book and wanted to use it in matlab. Thanks for implementing this in matlab, it works fine and is very useful.
05 Aug 2004	C Lynam	Works perfectly. nb, Calls on a few other files such as chi2cdf, distchck and chi2test.
28 Nov 2006	enrique buendia	is x2=2.284957205 not x2=3.1397 in your example code.
18 Jul 2008	Leandro Navarro Pablo	Thanks a lot. I have implemented it in my scripts and works nicely.
04 Dec 2008	Bahriye Basturk Akay	Thanks for implementing this function. it helped me a lot.
03 Nov 2009	Joseph Boomer	Downloaded and ran it today. Many thanks.

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Updates
16 Sep 2003	It was added an appropriate format to cite this file.
19 Sep 2003	In case of, it was added the warning: significance level must be between 0 and 1.
02 Oct 2003	Updating was made to reduce the record of data in a frequency form on only 3 lines.
21 Dec 2006	Text was improved.

Tag Activity for this File
Tag	Applied By	Date/Time
statistics	Antonio Trujillo-Ortiz	22 Oct 2008 07:07:31
probability	Antonio Trujillo-Ortiz	22 Oct 2008 07:07:31
normality test	Antonio Trujillo-Ortiz	22 Oct 2008 07:07:31
dagostinopearson test	Antonio Trujillo-Ortiz	22 Oct 2008 07:07:31
assessing normality	Antonio Trujillo-Ortiz	22 Oct 2008 07:07:31

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