Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask
 
PerlMonks  

Re: Making sense of data: Clustering OR A coding challenge

by srdst13 (Pilgrim)
on Apr 04, 2006 at 01:27 UTC ( [id://541066]=note: print w/replies, xml ) Need Help??


in reply to Making sense of data: Clustering OR A coding challenge

For most problems like this, I move over to using a programming language with more context-specific tools like R. At least a dozen clustering methods are available and there are facilities for estimating the "true" number of clusters. Using it is fairly simple from perl. Just write a little script that you call from the command line that reads a file of numbers that you supply. The output can be graphical or some numeric summary--whatever suits your needs. You can also use the perl module, Statistics::R to interact without the intermediate running of an R script from the commmand line.

Sean

Replies are listed 'Best First'.
Re^2: Making sense of data: Clustering OR A coding challenge
by Win (Novice) on Apr 04, 2006 at 10:16 UTC
    I am quite interested in this. Can you please offer Perl scripts that does this by way of example. Are the graphs that you get from R really much better than Excel? Is there a web page that demonstrates that graphical capabilities of R?
      A reply falls below the community's threshold of quality. You may see it by logging in.

      "Is there a web page that demonstrates that graphical capabilities of R?"

      For graphical examples using R, check out this website. If there are any questions as to whether R can generate better graphs than Excel, that website should answer them.


      Sean

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://541066]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others chilling in the Monastery: (5)
As of 2024-03-19 06:25 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found