From e8a15d544490b3fe80ef77dd995d12de84194d00 Mon Sep 17 00:00:00 2001
From: Hanmin Qin <qinhanmin2005@sina.com>
Date: Thu, 29 Jun 2017 19:31:48 +0800
Subject: [PATCH] DOC fix the equation in
gaussian_process.kernels.ExpSineSquared (#9224)
---
sklearn/gaussian_process/kernels.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sklearn/gaussian_process/kernels.py b/sklearn/gaussian_process/kernels.py
index b68b6a1f9f..50febc8542 100644
--- a/sklearn/gaussian_process/kernels.py
+++ b/sklearn/gaussian_process/kernels.py
@@ -1512,7 +1512,8 @@ class ExpSineSquared(StationaryKernelMixin, NormalizedKernelMixin, Kernel):
parameter periodicity>0. Only the isotropic variant where l is a scalar is
supported at the moment. The kernel given by:
- k(x_i, x_j) = exp(-2 sin(\pi / periodicity * d(x_i, x_j)) / length_scale)^2
+ k(x_i, x_j) =
+ exp(-2 (sin(\pi / periodicity * d(x_i, x_j)) / length_scale) ^ 2)
.. versionadded:: 0.18
--
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