units     in | cm

The measurement unit to be used for ploticus absolute units. Either in (inches) or cm (centimeters). Default is in. If this is set in the config file, it will be in effect when command line arguments are evaluated. If set in proc settings, it will not have any effect on command line argument evaluation.
Example: units: cm

encodenames     yes | no

If yes, spaces and commas can be represented in field names using an encoding scheme where a space is represented using an underscore (_) and a comma is represented using a vertical bar (|). Useful in situations where field names will be visible directly as legend labels or axis stubs. Default is no for backward compatibility. Example: students

enable_suscripts     yes | no

If yes, inline superscripts and subscripts capability is turned on. Default is no for backward compatibility. Here's an example.

font     fontname

Make fontname the default font. For more information see fonts.

numbernotation     standard | us | euro

Specifies how decimal point and thousands separators will be displayed. Default is standard. The following table illustrates:

 standard           us             euro
----------    ------------    -------------
     79              79               79
     79.5            79.5             79,5  
   4321.79         4321.79          4321,79 
  54321          54,321           54.321
 654321.07      654,321.07       654.321,07
1987654321    1,987,654,321    1.987.654.321


numberspacerthreshold     n

Specifies at what numeric magnitude thousands separators will begin to be inserted. Default is 4, and this is used in the above table. If it were set to 3, the third entry in the above table would appear like this:
   4321.79         4,321.79          4.321,79