Problems with Putexcel command and looping

[Michael Duarte Goncalves]

Hello everyone,
Sorry to bother you again.

When I apply this code:

local row 2
forvalues diploma_i = 0/3 {

  forvalues field_j = 1/4 {
putexcel set Figures11_12_13.xlsx, sheet(Figure 13) modify
 svy,subpop(diploma_hes`diploma_i' if restricted_field`field_j' == 1) : prop k_uebverl
matrix B = r(table)'
local varlabel2 : var label diploma_hes`diploma_i'
putexcel A`row' = matrix(B), rownames
putexcel K`row' = "`varlabel2'"
local row = `row' + rowsof(B)
         }
}

I get this error :

 no observations in subpop() subpopulation subpop() = 1 indicates observation in subpopulation subpop() = 0 indicates observation not in subpopulation r(461);

Could anyone help me please ?

Thank you so much in advance.

[Michael Duarte Goncalves]

* Example generated by -dataex-. For more info, type help dataex
clear
input byte(diploma_hes0 diploma_hes1 diploma_hes2 diploma_hes3 restricted_field1 restricted_field2 restricted_field3 restricted_field4) float k_uebverl
0 0 0 1 0 0 0 1 2.3428106
0 0 0 1 0 0 1 0  2.588486
0 0 0 1 0 1 0 0  2.980344
0 0 0 1 1 0 0 0 1.9414893
0 0 0 1 . . . .  2.491228
0 0 1 0 0 0 0 1  3.970588
0 0 1 0 0 0 1 0  4.231707
0 0 1 0 0 1 0 0 2.4285715
0 0 1 0 1 0 0 0  2.393035
0 1 0 0 0 0 0 1  3.378007
0 1 0 0 0 0 1 0 4.6729856
0 1 0 0 0 1 0 0  2.617647
0 1 0 0 1 0 0 0 1.9950658
1 0 0 0 . . . .  1.819011
. . . . . . . .  3.190728
end

[Michael Duarte Goncalves]

Problem solved.

Thanks.