How get row name matrix for especific condition

[Rodrigo Badilla]

Hi all I wonder if its possible get row names for a matrix for the max value in all matrix.

Andrew Mosau sent me this great code to get columns names but I could not remake to get names rows:

sysuse auto, clear
qui tabulate foreign rep78, matcell(x)
matrix colnames x= one two three four five
matrix rownames x= Juan Pedro
mat lis x
local ma : coln (x)

x[2,5]
         one    two  three   four   five
 Juan      2      8     27      9      2
Pedro      0      0      3      9      9



mata
x= st_matrix("x")
xs = sort(-x,1)
v = xs[(1), .]
maxcol = selectindex(v:==rowmin(v))
st_numscalar("max", maxcol)
end  

local maxcol= max  
local maxcolname: word `maxcol' of `ma'
di "`maxcolname'"

three

My goal its get the row and col names for frequency 27: three and Juan.

[John Mullahy]

Rodrigo: Have you tried st_matrixrowstripe() and st_matrixcolstripe() in Mata? See help mf_st_matrix

[Rodrigo Badilla]

Hi, John,

Thanks for you reply.

st_matrixrowstripe() and st_matrixcolstripe() work great :

. mata : st_matrixrowstripe("x")
           1       2
    +-----------------+
  1 |           Juan  |
  2 |          Pedro  |
    +-----------------+

I will try go get names for max values with: st_matrixrowstripe("x", max(st_matrix("x")))