From c1559e2dd686b5a9d5e3201e0105758842d236a0 Mon Sep 17 00:00:00 2001
From: Duncan Macleod <duncan.macleod@ligo.org>
Date: Thu, 14 Dec 2017 16:18:11 +0000
Subject: [PATCH] mlab.cohere: fixed critical typo

fixes #10003
---
 lib/matplotlib/mlab.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/matplotlib/mlab.py b/lib/matplotlib/mlab.py
index 65a4885de923..4293a913aa02 100644
--- a/lib/matplotlib/mlab.py
+++ b/lib/matplotlib/mlab.py
@@ -1344,7 +1344,7 @@ def cohere(x, y, NFFT=256, Fs=2, detrend=detrend_none, window=window_hanning,
                  scale_by_freq)
     Pxy, f = csd(x, y, NFFT, Fs, detrend, window, noverlap, pad_to, sides,
                  scale_by_freq)
-    Cxy = np.abs(Pxy) ** 2 / (Pxx * Pxy)
+    Cxy = np.abs(Pxy) ** 2 / (Pxx * Pyy)
     return Cxy, f