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19. clear

The clear command erases the current screen or output device as specified by set output. This usually generates a formfeed on hardcopy devices. Use set terminal to set the device type.

For some terminals clear erases only the portion of the plotting surface defined by set size, so for these it can be used in conjunction with `set multiplot` to create an inset.

Example:
 
     set multiplot
     plot sin(x)
     set origin 0.5,0.5
     set size 0.4,0.4
     clear
     plot cos(x)
     set nomultiplot

Please see set multiplot, set size, and set origin for details of these commands.

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