blank

Some plot styles expect a blank line to separate groups of data points read from a text input file. For instance the vertices of one polygon in an input text data stream are separated from those of the next polygon by a blank line. Since there are no actual blank lines in a binary file, this option allows a special record in a general binary file to be interpreted as if it were a blank line. The only option currently supported is blank=NaN, which means that a value of NaN in the first field of a record causes the entire record to be treated as if it were a blank line.

Example:

     plot DATA binary format="%2float" blank=NAN using 1:2 with polygons