matrix rownames for Stata15.1 and 16.1

[Haiyong Xu]

Hi,

I have two Stata installed, MP15.1 on my local computer and MP16.1 on a server. When I ran the following code, it was perfectly fine for MP15.1.

. matrix mymat = (1,2\ 3, 4)
. global newname 0b.physn_male#1b.physn_age_cd(<40)
. matrix rownames mymat = $newname
. matlist mymat, twidt(30)

| c1 c2
-------------------------------+----------------------
0b.physn_male#|
c.1b.physn_age_cd(<40) | 1 2
0b.physn_male#|
c.1b.physn_age_cd(<40) | 3 4

But on MP16.1, it gave me an error message as following
. matrix mymat = (1,2\ 3, 4)
. global newname 0b.physn_male#1b.physn_age_cd(<40)
. matrix rownames mymat = $newname
invalid matrix stripe;
0b.physn_male#1b.physn_age_cd(<40)
r(198);

Is this related to the different version of Stata? Any advice is appreciated. Thanks.

Haiyong

[Andrew Musau]

I think that this is a bug. The issue appears to be with how Stata parses the right (closing) parenthesis in Stata 16.

matrix mymat = (1,2\ 3, 4)
mat rowname mymat= 0b.physn_male#1b.physn_age_cd(<40)
mat rowname mymat= 0b.physn_male#1b.physn_age_cd(<40
matlist mymat, twidt(30)
mat rowname mymat= 0b.physn_male#1b.physn_age_cd[<40]
matlist mymat, twidt(30)

I also confirm that the issue does not occur in Version 15. You should send a report to Technical Services.

Res.:

.
. mat rowname mymat= 0b.physn_male#1b.physn_age_cd(<40)
invalid matrix stripe;
0b.physn_male#1b.physn_age_cd(<40)
r(198);

.
. mat rowname mymat= 0b.physn_male#1b.physn_age_cd(<40

.
. matlist mymat, twidt(30)

                               |        c1         c2
-------------------------------+----------------------
                 0b.physn_male#|                      
         c.1b.physn_age_cd(<40 |         1          2
                 0b.physn_male#|                      
         c.1b.physn_age_cd(<40 |         3          4

.
. mat rowname mymat= 0b.physn_male#1b.physn_age_cd[<40]

.
. matlist mymat, twidt(30)

                               |        c1         c2
-------------------------------+----------------------
                 0b.physn_male#|                      
        c.1b.physn_age_cd[<40] |         1          2
                 0b.physn_male#|                      
        c.1b.physn_age_cd[<40] |         3          4

.