fmcquillan99 commented on issue #441: Kmeans: simplified silhouette per point 
for k-means
URL: https://github.com/apache/madlib/pull/441#issuecomment-531943634
 
 
   Also, how do I use 1 row output from `kmeans_random_auto()` or 
`kmeanspp_auto()` with `simple_silhouette_points()`
   e.g., if my I have
   ```
    k |                                                                         
                                                                                
                 
                                         centroids                              
                                                                                
                 
                                                                                
     |               cluster_variance                |   objective_fn   | 
frac_reassigned | num_i
   terations |    silhouette     |       elbow       
   
---+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
   
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
   
----------------------------------------------------------------------------------+-----------------------------------------------+------------------+-----------------+------
   ----------+-------------------+-------------------
    2 | 
{{13.872,1.814,2.376,15.56,88.2,2.806,2.928,0.288,1.844,5.35198,1.044,3.348,988},{14.036,2.018,2.536,16.56,108.6,3.004,3.03,0.298,2.038,6.10598,1.004,3.326,1340}}
       
                                                                                
                                                                                
                 
                                                                                
     | {90512.324426408,60672.638245208}             | 151184.962671616 |       
        0 |      
           4 | 0.872087020146542 | -14509.9173954329
    3 | 
{{13.872,1.814,2.376,15.56,88.2,2.806,2.928,0.288,1.844,5.35198,1.044,3.348,988},{13.87,2.12666666666667,2.57666666666667,16.9333333333333,106,2.63333333333333,2.7566666
   
6666667,0.303333333333333,2.01333333333333,5.32663333333333,1.03666666666667,3.44333333333333,1256.66666666667},{14.285,1.855,2.475,16,112.5,3.56,3.44,0.29,2.075,7.275,0.955,
   3.15,1465}}                                                                  
     | {90512.324426408,8078.22646267333,452.7633}   | 99043.3141890813 |       
        0 |      
           3 | 0.895849874221733 |   24051.267625599
    4 | 
{{14.285,1.855,2.475,16,112.5,3.56,3.44,0.29,2.075,7.275,0.955,3.15,1465},{14.03,1.62,2.2525,14.2,80.75,2.8075,2.9875,0.2625,1.85,5.609975,1.045,3.4525,1051.25},{13.24,2
   
.59,2.87,21,118,2.8,2.69,0.39,1.82,4.32,1.04,2.93,735},{13.87,2.12666666666667,2.57666666666667,16.9333333333333,106,2.63333333333333,2.75666666666667,0.303333333333333,2.013
   
33333333333,5.32663333333333,1.03666666666667,3.44333333333333,1256.66666666667}}
 | {452.7633,9350.8411530075,0,8078.22646267333} | 17881.8309156808 |           
    0 |      
           2 | 0.941396037210154 |  47981.9140100655
    5 | 
{{13.16,2.36,2.67,18.6,101,2.8,3.24,0.3,2.81,5.6799,1.03,3.17,1185},{14.39,1.87,2.45,14.6,96,2.5,2.52,0.3,1.98,5.25,1.02,3.58,1290},{14.285,1.855,2.475,16,112.5,3.56,3.4
   
4,0.29,2.075,7.275,0.955,3.15,1465},{14.06,2.15,2.61,17.6,121,2.6,2.51,0.31,1.25,5.05,1.06,3.58,1295},{13.872,1.814,2.376,15.56,88.2,2.806,2.928,0.288,1.844,5.35198,1.044,3.3
   48,988}}                                                                     
     | {0,0,452.7633,0,90512.324426408}              |  90965.087726408 |       
        0 |      
           2 | 0.842533453115141 | -5209.80964753194
    6 | 
{{14.04,1.8225,2.435,16.65,110,2.845,2.97,0.295,1.985,5.594975,1.0425,3.3125,972.5},{14.2,1.76,2.45,15.2,112,3.27,3.39,0.34,1.97,6.75,1.05,2.85,1450},{14.225,2.01,2.53,1
   
6.1,108.5,2.55,2.515,0.305,1.615,5.15,1.04,3.58,1292.5},{13.16,2.36,2.67,18.6,101,2.8,3.24,0.3,2.81,5.6799,1.03,3.17,1185},{14.37,1.95,2.5,16.8,113,3.85,3.49,0.24,2.18,7.8,0.
   
86,3.45,1480},{13.2,1.78,2.14,11.2,1,2.65,2.76,0.26,1.28,4.38,1.05,3.49,1050}}  
  | {76176.4564000075,0,329.8988,0,0,0}           | 76506.3552000075 |          
     0 |      
           2 | 0.772762876324112 | -43770.9946685639
   (5 rows)
   
   ```
   and want to `simple_silhouette_points()` for the case where `k=5` say

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
[email protected]


With regards,
Apache Git Services

Reply via email to