[R] Spline Question

[David Winsemius]

On Feb 14, 2012, at 4:14 PM, Hasan Diwan wrote:

>> dput(sensor.sample)
> structure(c(1328565718.65, 1328566608.9, 1328566162.65, 1328566571.1,
snipped 5 pages of data....
> 0.909395426580465, 0.806793813827552, 0.474927337412093,  
> -0.0383057034947468,
> -0.454526719533217, -0.187379201707524, 0.249983084438962,  
> 0.632832546743065,
> -0.986399675507447, -0.970631383787144), .Dim = c(504L,  
> 2L), .Dimnames = list(
>     NULL, c("sensors.sample", "")))
>
> What I'd like to do is get a spline through all the points.

On the face of it that seems to be an extraordinary request. So (not  
for the first time)  I must not be understanding something. Are you  
really asking for assistance in constructing a 503rd or 504th  degree  
polynomial? And if you are, then why pose the question on a statistics- 
oriented mailing list. We only deal in approximations to the Truth.



> I'm
> thinking the spline function is my best approach. But a plot of the
> spline and the points shows it does not cross every one perfectly. Do
> I need to specify a particular method for this, or am I using the
> wrong approach? Thanks in advance! -- H
> -- 
> Sent from my mobile device
> Envoyait de mon portable


-- 
David Winsemius, MD
West Hartford, CT