Message-ID: <loom.20090407T075247-249@post.gmane.org>
Date: 2009-04-07T08:01:13Z
From: Dieter Menne
Subject: Confidence interval?
Thomas Seth Davis <Thomas.Davis <at> nau.edu> writes:
> I need help fitting/plotting a confidence interval to a frequency
distribution....
>
In many medical journals, reviewers only want to see some error bars.
In 90% of the cases, these are wrong or misleading, but it is hopeless
to argue with medical professors playing statisticians. So I give them
the square-root of the counts, which is not much worse than anything else,
but I do not claim these to be confidence intervals.
Have some good excuse ready when some counts are low.
If you are working in a more serious field, you might consider giving
something like estimates of the parameters, but you cannot plot these
in your curves easily. Try fitdistr in package MASS for a starter.
> >
> > You must know your password to change your options (including changing
> > the password, itself) or to unsubscribe. It is:
> >
> > davis234
This is really a great password, which needed 0.03 seconds on my
computer to crack.
Dieter