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Cluster analysis in R: determine the optimal number of clusters
Being a newbie in R, I'm not very sure how to choose the best number of clusters to do a k-means analysis. After plotting a subset of below data, how many clusters will be appropriate? How can I perform cluster dendro analysis?
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Why are margin/padding percentages in CSS always calculated against width?
If you look at the CSS box model spec , you'll observe the following:
5 Answers
5
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How do I use Django templates without the rest of Django?
I want to use the Django template engine in my (Python) code, but I'm not building a Django-based web site. How do I use it without having a settings.py file (and others) and having to set the DJANGO_SETTINGS_MODULE environment variable?
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Predicate Delegates in C#
Can you explain to me:
10 Answers
10
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Use Expect in a Bash script to provide a password to an SSH command
...oviding the password works, but I don't end up in the SSH session as I should. It goes back strait to Bash.
9 Answers
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How can I pass selected row to commandLink inside dataTable or ui:repeat?
I'm using Primefaces in a JSF 2 application. I have a <p:dataTable> , and instead of selecting rows, I want the user to be able to directly execute various actions on individual rows. For that, I have several <p:commandLink> s in the last column.
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Javascript: negative lookbehind equivalent?
Is there a way to achieve the equivalent of a negative lookbehind in javascript regular expressions? I need to match a string that does not start with a specific set of characters.
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“Unresolved inclusion” error with Eclipse CDT for C standard library headers
I set up CDT for eclipse and wrote a simple hello world C program:
14 Answers
14
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Get type of all variables
In R, I'd like to retrieve a list of global variables at the end of my script and iterate over them. Here is my code
6 Answ...
Uniq by object attribute in Ruby
What's the most elegant way to select out objects in an array that are unique with respect to one or more attributes?
14 An...