Re: st: STATA 10 help

[Nick Cox <n.j.cox@stata.com>]

You have perfect fit, so errors (residuals) are zero, ditto standard 
errors. This is an extension of the rule that a straight line can be 
drawn going through any two distinct points.

Scientifically, the indication is that you need to consider a simpler 
model, or conclude that you do not have enough data to fit this model.

Nick

Shimokawa, Kensuke wrote:

> I am currently trying to make a simple regression model where I include myself as a variable influencing the firms revenue. This is for a small presentation I need to make to a firm for a interview process. I have run a multiple regression, but I am getting peculiar results where some of my coefficient variables are dropped and I don't get any numerical values for the certain columns (see below). I will appreciate if I could get your help as soon as possible. Thank you. 
>
>  regress Rev GDP7 DJ NK FTSE UE7 OP 
>
>       Source |       SS       df       MS              Number of obs =       6
> -------------+------------------------------           F(  5,     0) =       .
>        Model |  48697133.3     5  9739426.67           Prob > F      =       .
>     Residual |           0     0           .           R-squared     =  1.0000
> -------------+------------------------------           Adj R-squared =       .
>        Total |  48697133.3     5  9739426.67           Root MSE      =       0
>
> ------------------------------------------------------------------------------
>          Rev |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
> -------------+----------------------------------------------------------------
>         GDP7 |  (dropped)
>           DJ |    42.9947          .        .       .            .           .
>           NK |   81.30229          .        .       .            .           .
>         FTSE |   287.0798          .        .       .            .           .
>          UE7 |  -2196.796          .        .       .            .           .
>           OP |   35.09357          .        .       .            .           .
>        _cons |  -27760.23          .        .       .            .           .
> ------------------------------------------------------------------------------

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