Stefano,
There is indeed a command in S -- have a look under skewness
Regards,
David
-----Original Message-----
From: Stefano Sofia [mailto:stefano.sofia@usa.net]
Sent: 30 June 2003 11:57
To: s-news@lists.biostat.wustl.edu
Subject: about skewness
Dear Splus users,
I need to evaluate the skewness of a set of data (temperature values).
Is there any predefined Splus command for the skewness? I have been looking
for, with no success.
An easy way to evaluate the skewness is:
(mean – mode) / (standard deviation).
Which is the Splus command for the “mode”?
It should never be the case (my data should be fitted by a Gamma
distribution), but what happens if the mode is not a single value?
Do you know any more effective way to check the positiveness or negativeness
of the skewness for some data?
Thank you for your usual help and support
Stefano
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