From 27ea8d0bf589526114b2d17ed95389a9426bdede Mon Sep 17 00:00:00 2001
From: mwhite-IPA <mwhite@poverty-action.org>
Date: Wed, 19 Mar 2014 17:35:15 -0400
Subject: [PATCH] Added .mata sample for Stata.

Source: http://www.stata.com/help.cgi?m1_first
---
 samples/Stata/tanh.mata | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 samples/Stata/tanh.mata

diff --git a/samples/Stata/tanh.mata b/samples/Stata/tanh.mata
new file mode 100644
index 00000000..63504603
--- /dev/null
+++ b/samples/Stata/tanh.mata
@@ -0,0 +1,8 @@
+numeric matrix tanh(numeric matrix u)
+{
+		numeric matrix  eu, emu
+
+		eu = exp(u)
+		emu = exp(-u)
+		return( (eu-emu):/(eu+emu) )
+}