From 01fbbeb69c196c6f77663867fc511316da7f7eae Mon Sep 17 00:00:00 2001
From: rasbt <se.raschka@me.com>
Date: Tue, 23 Sep 2014 13:31:37 -0400
Subject: [PATCH] make bitstring func

---
 howtos_as_py_files/make_bitstring.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 howtos_as_py_files/make_bitstring.py

diff --git a/howtos_as_py_files/make_bitstring.py b/howtos_as_py_files/make_bitstring.py
new file mode 100644
index 0000000..fc2baa4
--- /dev/null
+++ b/howtos_as_py_files/make_bitstring.py
@@ -0,0 +1,14 @@
+# Generating a bitstring from a Python list or numpy array
+# where all postive values -> 1
+# all negative values -> 0
+
+def make_bitstring(ary)
+    return np.where(ary > 0, 1, 0)
+
+
+### Example:
+
+ary1 = np.array([1, 2, 0.3, -1, -2])
+make_bitstring(ary1)
+
+# returns array([1, 1, 1, 0, 0])
\ No newline at end of file