In the discussion a "point" is a datum defined by a single record in the
file; "block" here will mean the same thing as "datablock" (see glossary (p. )).
Syntax:
plot 'file' every {<point_incr>} {:{<block_incr>} {:{<start_point>} {:{<start_block>} {:{<end_point>} {:<end_block>}}}}}
The data points to be plotted are selected according to a loop from start_point to end_point with increment point_incr and the blocks according to a loop from start_block to end_block with increment block_incr.
The first datum in each block is numbered '0', as is the first block in the file.
Note that records containing unplottable information are counted.
Any of the numbers can be omitted; the increments default to unity, the start values to the first point or block, and the end values to the last point or block. ':' at the end of the every option is not permitted. If every is not specified, all points in all lines are plotted.
Examples:
every :::3::3 # selects just the fourth block ('0' is first) every :::::9 # selects the first 10 blocks every 2:2 # selects every other point in every other block every ::5::15 # selects points 5 through 15 in each block
See
http://www.gnuplot.info/demo/simple.htmlsimple plot demos (simple.dem)
,
http://www.gnuplot.info/demo/surface1.htmlNon-parametric splot demos
, and
http://www.gnuplot.info/demo/surface2.htmlParametric splot demos
.
Build Daemon 2016-01-18