Dear Allin,

I'd found some untranslatable strings:

(1) "no valid values" when someone try to open
    empty series

(2) "Bare declarations are not allowed here" when
    someone try to use a foreach loop with strings
    (e.g. loop foreach mes "1m" "2m" --quiet)

(3) "corr: o argumento 1 deve ser series, is matrix"
    when someone try to calculate (in a wrong way)
    the correlation of a matrix.

(4) "The variable X is read-only" when someone try
    to rename a variable inside some kind of loops.

Could you please mark them for translation?

Best regards,
Henrique Andrade