From: ankur on 24 Apr 2010 11:12 HI, Can someone give me an idea of how to plot a bounded region of data? I have series plotted. Two of the series are basically 1/x plots (google 'plot 1/x') which are offset along the x-axis. The other two series are a fixed y-value along the entire x-axis, again offset. What is created is a region bound by these 4 plots. I think I could do this by subtracting series based on stacked area plots. Here's the twist. Once I have the bounded region defined (or mapped in a different color in the chart), I want to append cluster (xy) data to the chart and analyze it based on some distance calculations to the cluster... (blah blah for the reason). I don't know how to append xy data to a predefined area chart. Thanks for help. From: Paul Robinson on 25 Apr 2010 15:41 Hi I doubt Excel is your best option here. Have a look at GeoGebra at www.geogebra.org - it's free and you can run it from the website but save your files locally. It has a really fast learning curve. It has a spreadsheet functionality too. Check the GeoGebra Help, Wiki and Forum to see how things are done. regards Paul On Apr 24, 4:12 pm, ankur wrote:> HI, > > Can someone give me an idea of how to plot a bounded region of data? > I have series plotted.  Two of the series are basically 1/x plots > (google 'plot 1/x') which are offset along the x-axis.  The other two > series are a fixed y-value along the entire x-axis, again offset. > What is created is a region bound by these 4 plots.  I think I could > do this by subtracting series based on stacked area plots. > > Here's the twist.  Once I have the bounded region defined (or mapped > in a different color in the chart), I want to append cluster (xy) data > to the chart and analyze it based on some distance calculations to the > cluster... (blah blah for the reason). > > I don't know how to append xy data to a predefined area chart. > > Thanks for help.