Find the location of the maximum of a smoothing spline

Find the location of the maximum of a smoothing spline

findSplineMax(x, y, n = 1000, spar = NULL)

Arguments

x

Numeric vector of x values.

y

Numeric vector of y values (same length as x).

n

Integer, number of grid points to evaluate (default 1000).

spar

Smoothing parameter passed to stats::smooth.spline.

Value

A named list with components:

x

The x coordinate at which the spline reaches its maximum.

y

The corresponding maximum fitted y value.

Examples

x <- seq_len(10)
y <- sin(x) + rnorm(10, 0, 0.1)
findSplineMax(x, y)
#> $x
#> [1] 1.576577
#> 
#> $y
#> [1] 1.049945
#>