The deftype command defines a new data type.
deftype v typename [abbrev]The first form defines a new type for vectors. The typename may then be used as a vector type specification in a rawfile, and will be used by the display command to indicate the type. If an abbrev is given, values of that type can be named abbrev(something) where something is the name given in the rawfile (and something doesn't contain parentheses). The second form defines a plot type. The (one word) name for a plot with any of the patterns present in its plot type name as given in the rawfile will be plottypeN, where N is a positive integer incremented every time a rawfile is read or a new plot is defined. This is an obscure command that might be useful for exporting rawfile data to other programs. If a vector's value indicates furlongs per fortnight, its type can be so defined.
deftype p plottype [pattern ...]