I inherited a report from previous employee, and I am trying to see the logic of variable assignment.
I think the formula works in the report, but I have not tested it.
The author names stringvar, then has a Do Loop based on upper bounds of parameter list.

I want to do something similar, but I do not understand the variable assignment and piece.

Here is the code. I will flag the piece I am uncertain with using ^. I will add my comments to //

numberVar i := 0;
stringVar sParam_Site := "";

for i := 1 to ubound({?Site}) do //I assume this gets //the total number of parameters chosen from parameter //list

sParam_Site := sParam_Site + {?Site} [ i ] + ",";
......................~~~~...........................^//I am not sure how the ?Site param and the [ i] interact. I see that +"," is used to build comma separated string.

sParam_Site := Left (sParam_Site, length(sParam_Site) - 1);

if {?Site}[1] = "*" then sParam_Site := "*";

sParam_Site;

If someone could help me understand the logic here, it will help me become a better programmer.

Thanks for such a fast response! I have read the forum before, but this was my first post and it was answered so quickly.
So, the sParam_Site := sParam_Site + {?Site} [ i ] is basically looking at the index number of i, so that it walks down the array as the loop cycles through all the parameters chosen...
Makes sense. Just did not know what I was seeing, but now clear as a bell.
Thanks again.