Re: A86: Re: odd thing

To: <assembly-86@lists.ticalc.org>
Subject: Re: A86: Re: odd thing
From: "Garcia" <xrigel@q-net.net>
Date: Wed, 18 Feb 1998 14:04:44 -0500
Reply-To: assembly-86@lists.ticalc.org


>> 3. Writing your own functions (like that Stat Beta ..I love it)
>
>You should explain to me a couple (just a couple) of the Stat Functions.  I
>discovered how to create a function, but I can't read the parameters.  But
if I
>knew what some of the functions did...    ;-)
>
>Or maybe there is a document you could direct me to?
>

Here are the one's I know: (I'm in AP Stat)

1. ZTest(:
    This take four or five integers.. The first one is "stu0" (the u should
be the greek letter).This is what the test is performed against.  Second is
"sto"  - the sample's standard deviation (o should be sigma?).  The third is
stx (x bar) the observed sample average.  The fourth is stn (population
size). There can be a fifth arg. depending what you want.  If there is no
fifth arg.  then ZTest checks:

 uO =/ x    (u sub 0 does not equal xbar (that is the third arg.)
If the fifth arg is greater than 0 it check for uo>x
If less than 0 it checks for uo<x

(This is taking a long time)

2. Chitst(        (Chi-Sqaured test)
    This take two args.  First is the name of a matrix (the observed values)
which is stored in equation "stobs".  Then the second is the name of the
martix that you want the output in (the expected values).  This name is
stored in equ "stexp"

All of this is really hard to explain without you having taken some stats
because tests like ZTest and ZPrp and use in part the normal approximation
of the area of a normal curve at a given distance from the mean.

I hope this helps some.

Andres Garcia
----------------------
xrigel@q-net.net

Follow-Ups:

Re: A86: Re: odd thing

From: Dux Gregis <assets@eden.rutgers.edu>