TradeStation Help
ActivityBar studies, just like other analysis techniques, require a certain number of bars of data to perform their calculations. When you insert the ActivityBar study in a chart, cells will not appear on the first bar of data; cells will begin plotting once the necessary number of bars is present.
By default, the Max number of bars study will reference option is set to Auto-detect, so you do not need to modify this option; however, should you want to modify it and set it to a user-defined number of bars, you can do so.
If you use the User-Specified option and do not include enough bars to calculate the ActivityBar study, you will receive a Runtime Error message when you apply the study to your chart. We recommend you leave it set to Auto-detect.
Activate a Chart Analysis window containing an ActivityBar study. Access using the menu bar Insert > ActivityBar menu sequence. The Insert Analysis Techniques dialog is displayed.
If the ActivityBar study is already applied to a chart, use the Format > Analysis Techniques menu sequence, select the ActivityBar study to format, click Format, and continue with Step 4.
Click OK to apply changes or Cancel to exit without changes.