The min, max, and stub increment may be automatically determined or specified manually. The underlying scale type is usually simple linear, but it can be any type. The categories scale type allows non-numeric tags to be plotted directly. However, the use of categories as the scale type ensures that data are being displayed at the correct location. An example of this is caselist .
Date scaling The date scale type allows date values to be plotted directly.
Like other time measures, dates are almost always plotted against the X axis. A wide variety of date notations are supported. A variety of different time notations are supported. The date and time values may be in any of the supported plotting formats. Sometimes it is desirable to show only portions of each day, when showing the entire 24 hour day would be too much.