1 files changed, 4 insertions, 0 deletions
diff --git a/R/SFO.solution.R b/R/SFO.solution.R
new file mode 100644
index 00000000..3a376e48
--- /dev/null
+++ b/R/SFO.solution.R
@@ -0,0 +1,4 @@
+SFO.solution <- function(t, parent.0, k)
+{
+	parent = parent.0 * exp(-k * t)
+}