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3.15 plot

‘plot‘ is the primary command for drawing plots with ‘gnuplot‘. It creates plots of functions and data in many, many ways. ‘plot‘ is used to draw 2D functions and data; ‘splot‘ draws 2D projections of 3D surfaces and data. ‘plot‘ and ‘splot‘ offer many features in common; see ‘splot‘ for differences. Note specifically that although the ‘binary <binary list>‘ variation does work for both ‘plot‘ and ‘splot‘, there are small differences between them.

Syntax:

      plot {<ranges>}
           {<iteration>}
           {<function> | {"<datafile>" {datafile-modifiers}}}
           {axes <axes>} {<title-spec>} {with <style>}
           {, {definitions{,}} <function> ...}

where either a <function> or the name of a data file enclosed in quotes is supplied. A function is a mathematical expression or a pair of mathematical expressions in parametric mode. Functions may be builtin, user-defined, or provided in the plot command itself. Multiple datafiles and/or functions may be plotted in a single command, separated by commas. See ‘data‘, functions.

Examples:

      plot sin(x)
      plot sin(x), cos(x)
      plot f(x) = sin(x*a), a = .2, f(x), a = .4, f(x)
      plot "datafile.1" with lines, "datafile.2" with points
      plot [t=1:10] [-pi:pi*2] tan(t), \
           "data.1" using (tan($2)):($3/$4) smooth csplines \
                    axes x1y2 notitle with lines 5
      plot for [datafile in "spinach.dat broccoli.dat"] datafile

See also ‘show plot‘.


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