  # st: RE: Estout and predicted signs

 From "Jann, Ben" To Subject st: RE: Estout and predicted signs Date Sat, 12 Feb 2005 21:17:02 +0100

```Hervé wrote:
>In a regression table, I would like to insert a column with predicted
>signs after the var names. I know that I can do it manually in my excel
>sheet after -estout- but I would like to know if it is possible to do it
>with -estout-.

There is no simple solution to the problem. You can, for example,
add a matrix indicating the predicted signs to the estimates and then
use -estout- to table both the estimates and the predicted signs.
The problem is of course that you cannot have strings in a matrix.
Thus, use, say, "999" for "positive sign" and "-999" for "negative
sign" and then apply -estout-'s -substitute()- option. An example:

sysuse auto
regress price mpg weight foreign
tempname b
matrix `b' = e(b)
matrix `b' = `b'[1,1..3] //get rid of constant
matrix `b'[1,1] = -999   //neg. sign for mpg
matrix `b'[1,2] = +999   //pos. sign for weight
matrix `b'[1,3] = +999   //pos. sign for foreign
eret2 matrix signs = `b'
estimates store model1
estout model1, cells("signs b") substitute(-999 - 999 +)

Alternatively, store the predictes signs as an own set of
"fake" estimates:

capture program drop prsign
program define prsign, eclass
tempname b V
matrix `b' = e(b)
matrix `V' = e(V)
local i = 0
foreach sign of local 0 {
matrix `b'[1,`++i'] = `sign'999
}
ereturn post `b' `V'
ereturn local cmd sham
end

sysuse auto
regress price mpg weight foreign
estimates store model1
regress price mpg weight foreign, noconstant
prsign - + +
estimates store signs
estout signs model1, substitute(-999 - 999 +)

ben

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