How to do homogeneity test using XLSTAT?

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Kamal Ahmed

Dear Hamouda!

Its very simple. You just need to put your data in excel. Go to xlstat, click Time, click Homogeneity tests, select the data you want to test, also check the method you want to test like Pettite, SNHT etc. click OK. It will provide your results in a new sheet.

Thanks

Ghaieth Ben Hamouda

Thank you Dr.Ahmed. After these tests, how to know if a station should be discarded or conserved?

Dear Hamouda!!

Go to the output file, you can see

Test interpretation:

H0: Data are homogeneous

Ha: There is a date at which there is a change in the data

As the computed p-value is lower than the significance level alpha=0.05, one should reject the null hypothesis H0, and accept the alternative hypothesis Ha.

This will give you idea about homogeneity.

Regards

Thank you Dr.Ahmed

Manu Raj Sharma

Dr Kamal Ahmad and Dr Ghaieth Ben Hamouda,

can you please tell something as how to make data homogenous after my null hypothesis is rejected? I am using SNHT for rainfall data for 100 years.

Abhijit Mitra

https://help.xlstat.com/customer/portal/.../17175420-homogeneity-tests-sample-size?--you can consult this

Thank you Dr. Abhijit Mitra

Jamshid Ergashev

Manu Raj Sharma Could you find an answer to your question? I am facing the same problem bro.

Jamshid Ergashev please first find the break year that breaks the homogeneity of data. Replace that with data from neighbouring station falling under same meteorological subdivision.

Alaa Mahgoub

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