You can use the change-of-base formula, see, e.g.,

http://www.mathwords.com/c/change_of_base_formula.htm

Cheers,
Eibe

On Thu, Jan 25, 2018 at 11:30 PM, Murad Al-Rajab <m_alrajab@yahoo.com> wrote:
Hi...

I would like to compute the logarithm of base 10 in weka. I noticed that log function in the MathExpression function computes the Natural Logarithm (ln).
I tried to used the "log10(A)" function as in Java but has an error. Can anyone help.

Thank you

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