Postgres Pro
Downloads
Home   >   mailing lists

How to Make aggragate Function? Standard Deviation? - Mailing list pgsql-novice

From Phillip J. Allen
Subject How to Make aggragate Function? Standard Deviation?
Date
Msg-id 3B7A9A88.2FFEE5C0@attglobal.net
Whole thread Raw
Responses Re: How to Make aggragate Function? Standard Deviation?  (Jason Earl <jdearl@yahoo.com>)
List pgsql-novice
Tree view 
Hi all,

I am just starting to write functions in plpgsql.  I have made some
simple functions but now I need a standard deviation function.  The
documentation was not too clear so does anyone have any suggestion on
how to begin?  I can do this in plpgsql or do I need to do this in C?

thanks,

Phillip J. Allen
Consulting Geochemist/Geologist
Lima Peru
e-mail: paallen@attglobal.ent

pgsql-novice by date:

Previous
From: "Oliver Elphick"
Date:
Subject: Re: replacing within cells
Next
From: "Tamara D. Blum"
Date:
Subject: Error installing postgresql 7.1.2