I just wonder if anyone is using TdAmeritrade Strategydesk. Do you know how to write a formula for a standard deviation of prices? i.e. SD of close prices in the past 10 days. Please help. Many thanks in advance!
In SD, go to: columns -> custom field wizard -> new In custom field wizard, hit the "Browse Library" button, select Indicators folder Note the Standard Deviation (20 days) indicator. You can easily modify the length to 10 days. Not something I've used, so can't vouch for it's accuracy.