add erfinv

dmazarei · Jul 1, 2024 · c8496f2 · c8496f2
1 parent db4bf72
commit c8496f2
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/R/utils.R b/R/utils.R
@@ -1,2 +1,5 @@
 ### error function
 erf <- function(x) 2 * stats::pnorm(x * sqrt(2)) - 1
+
+### inverses error function
+erfinv <- function (x) qnorm((1 + x)/2)/sqrt(2)