[ferret_users] Repeat loop index nesting

[Patricia Handmann <phandmann@xxxxxxxxx>]

Dear ferreters,

Ist there a possibility to do this:

repeat/i=1:671 (let st=p_12111_st[i=`i`];\
let end=p_12111_end[i=`i`];\
let int_transp_s= var1211[i=`st`:`end`@SUM])

It should calculate the Sum and save it to the new grid of int_transp_s.

Cheers,
Patricia