Compute the area under the curve using linear or natural spline interpolation

This function computes the area under the curve for two vectors where one corresponds to the x values and the other corresponds to the y values. It supports both linear and spline interpolation.

Usage

auc(
  x,
  y,
  from = min(x, na.rm = TRUE),
  to = max(x, na.rm = TRUE),
  type = c("linear", "spline"),
  subdivisions = 100,
  ...
)

Arguments

x: A numeric vector of x values.
y: A numeric vector of y values of the same length as x.
from: The value from where to start calculating the area under the curve. Defaults to the smallest x value.
to: The value from where to end the calculation of the area under the curve. Defaults to the greatest x value.
type: The type of interpolation: "linear" or "spline". Defaults to "linear".
subdivisions: An integer indicating how many subdivisions to use for `integrate` (for spline-based approximations).
...: Additional arguments passed on to `approx` (for linear interpolations).

Value

A numeric value representing the area under the curve.