Let's say I have 2 arrays
x = [1,2,3,4,5,6]
y = [4,53,234,43,12,2]
Polynomial of degree n to fit y = F(x). How to interpolate y from x
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Have a look at Apache Commons Math. – Jack Leow Aug 02 '18 at 18:10
1 Answers
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One can use Apache Commons Math. Here's an example
import scala.collection.JavaConverters._
val x = 1 to 6
val y = Array(4, 53, 234, 43, 12, 2)
val n = 5
val fitter = PolynomialCurveFitter.create(n)
val result = fitter.fit((x zip y).map { case (a, b) =>
new WeightedObservedPoint(1, a, b)
}.asJava)
println(result.toList)
