Key examples

This places the key at the default location:

     set key default

This disables the key:

     unset key

This places a key at coordinates 2,3.5,2 in the default (first) coordinate system:

     set key at 2,3.5,2

This places the key below the graph:

     set key below

This places the key in the bottom left corner, left-justifies the text, gives it a title, and draws a box around it in linetype 3:

     set key left bottom Left title 'Legend' box 3