Trouble plotting BSpline
- To: mathgroup at smc.vnet.net
- Subject: [mg126290] Trouble plotting BSpline
- From: paul <paulvonhippel at yahoo.com>
- Date: Sun, 29 Apr 2012 02:08:45 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
I am having trouble plotting a BSpline. I fit the spline to data where y runs from 0 to 1, but when I try to plot the spline I see no curve, and I can't get the vertical axis to go above 0.15. I'm sure what I'm missing is simple. Many thanks for any corrections.
In[1]:= sdid = {{10000, 0.082925792},
{15000, 0.134594939},
{20000, 0.172655752},
{25000, 0.215181799},
{30000, 0.291941314},
{35000, 0.380820753},
{40000, 0.457367638},
{45000, 0.510312566},
{50000, 0.553051244},
{60000, 0.638103338},
{75000, 0.761428875},
{100000, 0.902615352},
{125000, 0.942802467},
{150000, 0.971082288},
{200000, 0.989368488}}
In[2]:= cdfspline = BSplineFunction[sdid]
In[3]:= ParametricPlot[cdfspline[x], {x, 0, 2000000}, {y, 0, 10}, AspectRatio -> 1]
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