Naive Bayes Mean and Standard Deviation Calculations

[email protected] Thu, 05 Jan 2023 16:25:08 -0000
Newsgroups gmane.comp.ai.weka
Message-ID <167293590871.2352.11701705504424759521@sys-mailman-prd.its.waikato.ac.nz>
Hello,
I am using the Iris dataset with the Naive Bayes classifier.
The output of the classifier gives me the mean and standard deviation of each attribute and each class. 
For example for Iris-setosa:
Sepal Length mean = 4.9913
Petal Width mean = 0.2743
But if I calculate those values in a spreadsheet, I get:
Sepal Length mean = 5.006
Petal Width mean = 0.244
Why the difference?
Thanks!
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