🚀 go-pugleaf

Hello good Splus users

I am using the spline() function to interpolates through data points. The 
result so far is pretty good. However, to be consistent with the demographic 
literature, I must find a way to do a 5th order spline interpolation.

Any help or suggestion to do a 5th order spline is welcomed.

This cumulative distribution needs to be interpolated for every integer, 
starting out and ending with a the first derivative = 0, no value should be 
negative and none should be higher than the max. Some values can be assumed 
or fixed like 10=0.0 and 53=0.0 , 52=0.0

>cumASFR
      [,1]  [,2]
[1,]    9   0.0
[2,]   14   2.6
[3,]   19 106.3
[4,]   24 290.4
[5,]   29 442.8
[6,]   34 539.5
[7,]   39 584.8
[8,]   44 595.6
[9,]   49 596.2
[10,]   54 596.2

Thanks,
Stefan



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