[rkward-tracker] [ rkward-Feature Requests-3440014 ] Cluster Analysis and Scoring

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Thu Nov 24 21:29:27 UTC 2011

Feature Requests item #3440014, was opened at 2011-11-18 11:01
Message generated for change (Comment added) made by burfee
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Category: RKWard user interface
Group: None
Status: Open
Priority: 5
Private: No
Submitted By: Burfee (burfee)
Assigned to: Nobody/Anonymous (nobody)
Summary: Cluster Analysis and Scoring

Initial Comment:
Cluster analysis would be great to have implemented in the menu. Something like this things here http://statmethods.net/advstats/cluster.html but automated from the menu.
Also, scoring procedures would be very useful to have too. 


>Comment By: Burfee (burfee)
Date: 2011-11-24 13:29

Hi again m-eik and sorry for the delay. I've been pretty caught up with
work lately.
Obviously it should be in the analysis menu.
The cluster analysis window should allow you to choose the method to use,
the number of clusters, the variables to include in the segmentation, the
threshold to determine if a variable is worth enough depending on the
statistic you're using.

The output should contain something like this:
-a pie chart showing the size of the segments 
-a table containing the statistics of the segments (number of observations
contained in the cluster, percentage of total, etc)
-barcharts for each segment, showing each of the selected variables'
contribution to the cluster
-overlaid hystograms for each of the variables in the clusters vs the
overall sample - this feature would be great as it would allow you to see
what really differentiates that cluster from the rest of the sample.

That's what i could thing of based on the experience i had with other
statistical software


Comment By: Burfee (burfee)
Date: 2011-11-20 02:06

Hi m-eik,

Great to see you're interested! :D
I can't write the plugin myself because i don't really know anything about
programming in R, but i will think about the layout and workflow and come
back with a few ideas in new comment shortly. 


Comment By: m.eik (m-eik)
Date: 2011-11-18 15:05

hi burfee,

this shouldn't be too hard, generally. as of version 0.5.7, RKWard supports
additional plugins in the form of special R packages:
and the package rkwarddev enables you to write such a plugin as a single R
script, and even does the packaging for you.

i'd be interested in writing a cluster analysis plugin, too. please drop a
note if you'd like to help or even try yourself (with some assistance, if
you like), especially if you have ideas regarding layout and workflow.


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