Data processed via a single data parm string (eg:wims variable)

Syntax of the string: titletext: text of title ;xrange : -10,10 ;yrange : -10,10 ;grid : on ;xlabel :x-axis ;ylabel :y-axis ;xlog :off ;ylog :off ;color :on;Marks :dots ;numsets :10 ;dataset firstset ;x1 y1 ;x2 y2; ... ; x_n y_n ;dataset: the second ;x1 y1;x2 y2... dataset:last [numsets]; x1 y1 ;...