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2.18 lines

The ‘lines‘ style connects adjacent points with straight line segments. It may be used in either 2D or 3D plots. The basic form requires 1, 2, or 3 columns of input data. Additional input columns may be used to provide information such as variable line color (see ‘rgbcolor variable‘).

2D form

     1 column:   y       # implicit x from row number
     2 columns:  x  y

3D form

     1 column:   z       # implicit x from row, y from index
     3 columns:  x  y  z

See also ‘linetype‘, ‘linewidth‘, and ‘linestyle‘.