>Hi,
>
>I have the following problems
>
>I have variable index which takes values from 1-10
>
>I have variables demand1 - demand10
>depending upon the value of index, I have to select the value of demand 1
>
>i.e.
>
>if index==1, dem1 = demand1
>if index==2, dem1 = demand2
>if index==3, dem1 = demand3
Not in one statement, but...
g dem1=0
forv i=1/10 {
replace dem1=dem1+(index==`i')*demand`i'
}
