In short, higher values of either setting will return more spread out between tp's. The logic behind using the standard deviation is that a low value of it will return tp closer to where you entered the trade, as such it will have higher chances of the price reaching them.
The Indicator also has alert features for buy and sell so any trader can be aware of every potential signal the indicator produces.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.