Hi!
I have some experimental data collected and can be grouped into 2
variables, X and Y. One is the dependent variable (Y) and the other is
an independent variable (X). What test shall I made to check whether
there can be expressed as independent or not??
Thanks..
Linda
=
You can start with checking if they are correlated. It's simpler to do. If
you find that they are correlated then you have the answer to your
question.
If you find that they are uncorrelated and you have a reason to believe
that they may be not independent anyway then you can look for more
advance
"Vadim and Oxana Marmer" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> You can start with checking if they are correlated. It's simpler to do. If
> you find that they are correlated then you have the answer to your
> question.
> If you find that they are unco
On Wed, 20 Feb 2002 19:30:19 -, "Chia C Chong"
<[EMAIL PROTECTED]> wrote:
>
> "Vadim and Oxana Marmer" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > You can start with checking if they are correlated. It's simpler to do. If
> > you find that they are
"Rich Ulrich" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> On Wed, 20 Feb 2002 19:30:19 -, "Chia C Chong"
> <[EMAIL PROTECTED]> wrote:
>
> >
> > "Vadim and Oxana Marmer" <[EMAIL PROTECTED]> wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]..
Linda <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi!
>
> I have some experimental data collected and can be grouped into 2
> variables, X and Y. One is the dependent variable (Y) and the other is
> an independent variable (X). What test shall I made to che
There is a test based on nonparametric density estimates. You can estimate
joint and marginal densities by nonparametric methods and then test if
f(x,y)=f(x)f(y). You can find some details and references in Pagan & Ullah
"Nonparametric Econometrics".
On Wed, 20 Feb 2002, Chia C Chong wrote:
>
>
On Wed, 20 Feb 2002 22:21:38 -, "Chia C Chong"
<[EMAIL PROTECTED]> wrote:
[snip, various discussion before]
>
> I have an example of data of 2 RVs. When I tested the correlation between
> them, by simply find the correlation coefficient, it shows that the
> correlation coefficient is so smal