Demo scripts for gnuplot version 5 (pngcairo terminal)
See also the demo output for the SVG and canvas terminals.

Gnuplot is distributed with a large set of demonstration scripts. Here are samples of PNG output from some of the demos.

Basic 2D plot styles simple functions filled curves fill between curves candlesticks error bars histograms (more) bar graphs step functions multiple axis scales mixing styles variable size points parallel axis plots parametric functions piecewise functions vector fields circles boxplots rug plot text Math functions and curve fitting approximation B-splines Bezier splines complex trig functions complex error function parameter fitting probability probability (more) random numbers recursion, etc... data statistics	3D plots and surfaces surfaces 1 surfaces 2 contours singularities hidden surfaces pm3d coloring pm3d hidden surfaces 3D mapping Coordinate and axis transforms linked axes polar coords polar data cylindrical/spherical time/date coords Binary and Image data binary data image data binary and image tricks RGB + alpha channel bar chart art Colors data-dependent coloring RGB coloring RGB + alpha channel pm3d colors pm3d gamma	Sample Applications control models discrete contours financial data iteration non-gridded data running averages binning/histograms Gantt chart 2D and 3D heat maps Text options rotated text 'enhanced' text string data variable font size string variables hypertext (no png support) Page Layout multiplot layout multiple plots aligned plots axis location axis ticmarks rectangles Styles line and arrow styles fill styles dashed lines transparency transparent solids Animation animated gif