area_under_curve {bayestestR} | R Documentation |
Based on the DescTools AUC
function. It can calculate the area under the curve with a naive algorithm or a more elaborated spline approach. The curve must be given by vectors of xy-coordinates. This function can handle unsorted x values (by sorting x) and ties for the x values (by ignoring duplicates).
area_under_curve(x, y, method = c("trapezoid", "step", "spline"), ...)
auc(x, y, method = c("trapezoid", "step", "spline"), ...)
x |
Vector of x values. |
y |
Vector of y values. |
method |
Method to compute the Area Under the Curve (AUC). Can be |
... |
Arguments passed to or from other methods. |
DescTools
library(bayestestR)
posterior <- distribution_normal(1000)
dens <- estimate_density(posterior)
dens <- dens[dens$x > 0, ]
x <- dens$x
y <- dens$y
area_under_curve(x, y, method = "trapezoid")
area_under_curve(x, y, method = "step")
area_under_curve(x, y, method = "spline")