turn on suggestions

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

Find a Community

- Home
- /
- SAS Programming
- /
- SAS Procedures
- /
- independance test-2 quantitatives variables

Topic Options

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

10-05-2008 02:22 PM

Hi all

I wanna do a test seeing if my two quantitatives variables are independant or not.

The regression straight equation is alpha+beta*x=y.

The null hypothesis H0 states : Beta equals zero.

How to translate that into SAS ?

I would like to use the PROC REG or PROC GLM.

Thank you

I wanna do a test seeing if my two quantitatives variables are independant or not.

The regression straight equation is alpha+beta*x=y.

The null hypothesis H0 states : Beta equals zero.

How to translate that into SAS ?

I would like to use the PROC REG or PROC GLM.

Thank you

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

10-06-2008 04:06 PM

In REG or GLM, x is the independent variable and y is the dependent variable. The model tests the hypothesis that the x variable is linearly predictive of the y variable.

This can be looked at as a test of linear independence, but it is not a test of general independence; it's not sensitive to some non-linear relationships in the data.

CORR will look at monotonic relationships (in the Spearman or Kendall's statistics), but it will still miss a "bathtub" relationship.

So, do graphs to look at your data too.

Doc Muhlbaier

Duke

This can be looked at as a test of linear independence, but it is not a test of general independence; it's not sensitive to some non-linear relationships in the data.

CORR will look at monotonic relationships (in the Spearman or Kendall's statistics), but it will still miss a "bathtub" relationship.

So, do graphs to look at your data too.

Doc Muhlbaier

Duke

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

10-08-2008 04:38 AM

Basically what I have to do is to test if 2 variables are independant or not.

Gonna study your answers.

Thanks Message was edited by: babaorumi

Gonna study your answers.

Thanks Message was edited by: babaorumi