I am new to Amibroker and had a general programming question in reference to calculating the return series over multiple stocks. I would like to calculate return series over the stocks on the ASX20. I would like to do this without having to specify each name of the stock. I would then like to plot these series on a chart. I am able to do this for one stock, the current stock in the chart but am unable to figure out how to apply this over multiple stocks at once.
Cheers for any help