Re: A86: Re: odd thing
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Re: A86: Re: odd thing
Garcia wrote:
> >> 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
Thanks. It does help. If I ever figure out how to read the parameters,
you'll know because I'll update my Tokens program so that it contains
LnOff(x1,y1,x2,y2) as a third function and then upload the program to
ticalc.org.
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