R help - Oct 2006 - Differences in estimates calculated in R and SPSS

Hi,

I am writing a term paper about linear regression and analysis of variance in R
and SPSS.

I am a bit confused because I get different estimates for the regression
coefficients from R and SPSS.
Does anyone have an explanation for this?  As I am not so experienced in data
analysis, I don't know why this happens.

Thank you for helping,
Katja

On 14 October 2006 at 16:59, Katja Walentowitz wrote:
| I am a bit confused because I get different estimates for the regression
| coefficients from R and SPSS.  
| Does anyone have an explanation for this?  As I am not so experienced in
| data analysis, I don't know why this happens. 

Maybe you are not estimating the same model -- one may have an intercept, and
the other doesn't.  Or maybe something happens while you read the data --
start by comparing summary statistics, tabulations and plots of your data.

But as you didn't tell what you estimated, and how, it is a tad hard for use
to guess.  There is a Posting Guide recommending how to phrase questions and
what to suplly ...

Dirk

-- 
Hell, there are no rules here - we're trying to accomplish something. 
                                                  -- Thomas A. Edison