remove extraneous portions of matrix row/column label

[Richard Thomas Boylan]

I cannot figure out how to remove extraneous portions of matrix row/column label. For instance,

use http://www.stata-press.com/data/r14/airline
poisson injuries XYZowned

matrix list e(b)
matrix list e(V)

I would like to remove the dependent variables from the row and column names.

So, instead of row/column 1 label being
injuries:XYZowned, I would like it only to be XYZowned

I saw posts along these lines https://www.statalist.org/forums/for...n-using-esttab
but those have to do with the estpost command and this is not something that I am using here.

Any suggestions? Thanks. Richard

[Chen Samulsion]

Use matrix coleq to set column names of the matrix. But in the code below, you must firstly define a new matrix from e(b).

. quietly poisson injuries XYZowned

. matrix list e(b)

e(b)[1,2]
      injuries:   injuries:
      XYZowned       _cons
y1  -.24512246   2.0368819

. 
. matrix B=get(_b)

. 
. matrix list B

B[1,2]
      injuries:   injuries:
      XYZowned       _cons
y1  -.24512246   2.0368819

. 
. matrix coleq B= ""

. 
. matrix list B

B[1,2]
      XYZowned       _cons
y1  -.24512246   2.0368819

.

[Chen Samulsion]

And for the matrix e(V), similar code is like:

. matrix list e(V)

symmetric e(V)[2,2]
                     injuries:   injuries:
                     XYZowned       _cons
injuries:XYZowned   .07729469
   injuries:_cons  -.02173913   .02173913

. matrix V=get(VCE)

. matrix list V

symmetric V[2,2]
                     injuries:   injuries:
                     XYZowned       _cons
injuries:XYZowned   .07729469
   injuries:_cons  -.02173913   .02173913

. matrix coleq V=""

. matrix roweq V=""

. matrix list V

symmetric V[2,2]
            XYZowned       _cons
XYZowned   .07729469
   _cons  -.02173913   .02173913

[Richard Thomas Boylan]

Perfect! Thank you so much!