Spline
- To: mathgroup at smc.vnet.net
- Subject: [mg58281] Spline
- From: Pratik Desai <pdesai1 at umbc.edu>
- Date: Sat, 25 Jun 2005 01:56:49 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hi
I am trying to fit a spline through a data set ranging in value 0 to1
incremented by step size 0.1 (i.e the "x-axis" }, shown below. I have
information for points 0.1 to 0.9 in damprat. I know at point 0 and 1
the values for damprat is zero. Now for presentation reasons I want the
curve to pass through the points (0,0) and {1,0). Is there a way for the
spline to be extended through those points. Any suggestions would be
greatly appreciated
<< Graphics`Spline`
damprat = {0.014997649179748, 0.054098060220146, 0.104209568084688, \
0.145267085272089, 0.160493044616599, 0.145267084912456,
0.104209571529220, \
0.054098058877509, 0.014997649185286}
dat = Range[0.1, 0.9, 0.1]
data1 = Table[{dat[[s]], damprat[[s]]*10/s}, {s, 1, Length[
dat]}] (*The dataset i am interested in fitting a spline through*)
spline = SplineFit[data1, Cubic]
ParametricPlot[spline[u], {
u, 0, 8}, Compiled ->
True, PlotRange -> {0, 0.4}, Ticks -> {dat, Automatic}]
Thanks
Pratik
--
Pratik Desai
Graduate Student
UMBC
Department of Mechanical Engineering
Phone: 410 455 8134