xclear clears a graphics window. This function is obsolete. xclear([window-id]) window-id an integer scalar or vector. Without any argument, this function clears the current graphic figure by turning its visibility to 'off'. Otherwise it clears the graphics figures whose numbers are included in the vector window-id. For example xclear(1:3) clears windows 1, 2 and 3. If one of the windows does not exist, then it is automatically created. Function xclear is obsolete. To clear a figure, please use instead the clf function or the visible property. clf