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Extract a number from a string (JavaScript)
I have a string in JavaScript like #box2 and I just want the 2 from it.
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Format numbers to strings in Python
I need to find out how to format numbers as strings. My code is here:
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How to convert date to timestamp in PHP?
How do I get timestamp from e.g. 22-09-2008 ?
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How can I round up the time to the nearest X minutes?
Is there a simple function for rounding UP a DateTime to the nearest 15 minutes?
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How do you match only valid roman numerals with a regular expression?
Thinking about my other problem , i decided I can't even create a regular expression that will match roman numerals (let alone a context-free grammar that will generate them)
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How to get hex color value rather than RGB value?
Using the following jQuery will get the RGB value of an element's background color:
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Logic to test that 3 of 4 are True
I want to return True if and only if 3 out of 4 boolean values are true.
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Delete an element from a dictionary
Is there a way to delete an item from a dictionary in Python?
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D Programming Language in the real world? [closed]
Is anyone out there using D for real world applications? If so, what are you using it for? I can't seem to find anything big on the web written in D.
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Cluster analysis in R: determine the optimal number of clusters
...ewbie 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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