Message-ID: <1295478212967-3225457.post@n4.nabble.com>
Date: 2011-01-19T23:03:32Z
From: JClark
Subject: function of probability for normal distribution
In-Reply-To: <B37C0A15B8FB3C468B5BC7EBC7DA14CC62149384F0@LP-EXMBVS10.CO.IHC.COM>
Dear Greg Snow,
I'm a biologist trying to write a mathematical formula for a doubly
truncated normal distribution to be used in the language "R". I realise this
is simple stuff for a mathematician but I'm stumped.
Wikipedia gives what seems a fairly simple formula - with function = maths
with mean and standard deviation - but also phi - WHAT IS PHI !!?? -
especially how do I write this in "R" and why is the top "phi" in italics ??
Hoping you can help.
Yours sincerely,
Jeremy Clark
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