Deftype: Define a new type for a vector or plot

General Form:

deftype [v | p] typename abbrev

defines types for vectors and plots. abbrev will be used to parse things like abbrev(name) and to label axes with M<abbrev>, instead of numbers. It may be omitted. Also, the command `deftype p plottype pattern ...' will assign plottype as the name to any plot with one of the patterns in its Name: field.

Example:

deftype v capacitance F
settype capacitance moscap 
plot moscap vs v(cc)