Re: plot discrete spectrum

*To*: mathgroup at smc.vnet.net*Subject*: [mg23385] Re: [mg23266] plot discrete spectrum*From*: bernd at bio.vu.nl (Bernd Brandt)*Date*: Fri, 5 May 2000 02:07:19 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

Hi, I just noted the answer by Bob Hanlon. >>plt = (ListPlot[data, PlotStyle -> RGBColor[0, 0, 1], >> DisplayFunction -> Identity, PlotRange -> All] /. >> Point[{x_, y_}] :> Line[{{x, y}, {x, 0}}]); How can i extend this to plot a stepwise function? X are the datapoints. This means i have to plot to the next point, keeping the y value of the old. How can i extract two data points from the plot to make Point[{x1,y1}] Point[{x2,y2}] -> Line[{x1,y1},{x2,y1}] ? | X----X | | | X-----X | | |_________________ Kind regards, Bernd Brandt