A stock can be viewed as weekly, monthly, or whatever.
E.g., select IBM 1. You now see minute bars. You can press 60 to see hourly bars. You can also see 130 minute bars.
The default is the file type. For min = -1 (csi files, see Data) or min = 0, the default is daily. For min = 1, the default is 1 min.
A signal may contain a time. E.g., one may have a weekly signal. In this case, the default is the signal time.
Note that in the above example weekly is disabled. This is because there are not enough bars to show a chart. The minimum is 40. It may be necessary to read more bars (see Bars Back)