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From: Andre Wobst <wobsta@us...>  20040107 17:18:28

Hi Sudheer, On 07.01.04, Sudheer Phani wrote: > Could any one help me with plot functions. The code for one of > examples is like this > > g = graph.graphxy(width=8,y=graph.linaxis()) > r = random.Random() > d = [(i, math.exp(0.8*i+r.random())) for i in range(1,10)] > g.plot(graph.data(data.data(d)),x=0,y=1) > g.writetofile("lissajous") > > I am looking for some help with the plot function. In the line > g.plot(graph.data(data.data(d)),x=0,y=1) what does x=0 , y=1 signify. > > If these arguments are not given (g.plot(graph.data(data.data(d))), I am > getting an exception it says incomplete axis specification The x=0 says, that the first column should be the x coordiante, while the y=0 says, that the second column is the y coordinate. If you make plots with more axes, you can have x2, x3, etc as well. Certains styles allow also for other names, like dx for x error bars in the symbol style. There is no (not yet) default when ommitting those specifications needed to use the style. The symbol style needs an x and y value to be used at a xygraph. Thats the general concept ... André  by _ _ _ Dr. André Wobst / \ \ / ) wobsta@..., http://www.wobsta.de/ / _ \ \/\/ / PyX  High quality PostScript figures with Python & TeX (_/ \_)_/\_/ visit http://pyx.sourceforge.net/ 