Weights not working

[Lisa van Dijk]

Hi everyone,

I've been trying to run a regression analysis with weights, but Stata keeps telling me:

fweigths unknown weight type
r(198);

My code:
regress dv iv [fweights=Weight]

Yet, I cannot find out how to fix this. Your help would be most welcome!

[Carlo Lazzaro]

Lisa:
an -s- in excess caused the mess! (pun intended)

. use "C:\Program Files\Stata17\ado\base\a\auto.dta"
(1978 automobile data)

. regress price trunk weight [fweights= foreign ]
fweights unknown weight type
r(198);

. regress price trunk weight [fweight= foreign]

      Source |       SS           df       MS      Number of obs   =        22
-------------+----------------------------------   F(2, 19)        =     38.14
       Model |   115574797         2  57787398.3   Prob > F        =    0.0000
    Residual |  28788416.1        19  1515179.79   R-squared       =    0.8006
-------------+----------------------------------   Adj R-squared   =    0.7796
       Total |   144363213        21   6874438.7   Root MSE        =    1230.9

------------------------------------------------------------------------------
       price | Coefficient  Std. err.      t    P>|t|     [95% conf. interval]
-------------+----------------------------------------------------------------
       trunk |   107.3309   85.80616     1.25   0.226    -72.26347    286.9252
      weight |   5.178396   .6374784     8.12   0.000     3.844138    6.512654
       _cons |   -6832.56   1594.089    -4.29   0.000    -10169.03   -3496.094
------------------------------------------------------------------------------

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