[spark] branch master updated: [MINOR][DOCS] Fix the update rule in StreamingKMeansModel documentation

[srowen]

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The following commit(s) were added to refs/heads/master by this push:
     new 885aa55  [MINOR][DOCS] Fix the update rule in StreamingKMeansModel 
documentation
885aa55 is described below

commit 885aa553c5e8f478b370f8a733102b67f6cd2d99
Author: joelgenter <joelgen...@outlook.com>
AuthorDate: Tue Feb 19 08:40:59 2019 -0600

    [MINOR][DOCS] Fix the update rule in StreamingKMeansModel documentation
    
    ## What changes were proposed in this pull request?
    The formatting for the update rule (in the documentation) now appears as
    
![image](https://user-images.githubusercontent.com/14948437/52933807-5a0c7980-3309-11e9-8573-642a73e77c26.png)
    instead of
    
![image](https://user-images.githubusercontent.com/14948437/52933897-a8ba1380-3309-11e9-8e16-e47c27b4a044.png)
    
    Closes #23819 from joelgenter/patch-1.
    
    Authored-by: joelgenter <joelgen...@outlook.com>
    Signed-off-by: Sean Owen <sean.o...@databricks.com>
---
 .../scala/org/apache/spark/mllib/clustering/StreamingKMeans.scala     | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git 
a/mllib/src/main/scala/org/apache/spark/mllib/clustering/StreamingKMeans.scala 
b/mllib/src/main/scala/org/apache/spark/mllib/clustering/StreamingKMeans.scala
index ed8543d..ff4ca0a 100644
--- 
a/mllib/src/main/scala/org/apache/spark/mllib/clustering/StreamingKMeans.scala
+++ 
b/mllib/src/main/scala/org/apache/spark/mllib/clustering/StreamingKMeans.scala
@@ -42,8 +42,8 @@ import org.apache.spark.util.random.XORShiftRandom
  * <blockquote>
  *    $$
  *    \begin{align}
- *     c_t+1 &= [(c_t * n_t * a) + (x_t * m_t)] / [n_t + m_t] \\
- *     n_t+1 &= n_t * a + m_t
+ *     c_{t+1} &= [(c_t * n_t * a) + (x_t * m_t)] / [n_t + m_t] \\
+ *     n_{t+1} &= n_t * a + m_t
  *    \end{align}
  *    $$
  * </blockquote>


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