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Find if current time falls in a time range
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How to filter SQL results in a has-many-through relation
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How to use the new affix plugin in twitter's bootstrap 2.1.0?
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I was having a similar problem, and I believe I found an improved solution.
Don't bother spec...
When to use LinkedList over ArrayList in Java?
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How do I clear only a few specific objects from the workspace?
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R object identification
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I usually start out with some combination of:
typeof(obj)
class(obj)
sapply(obj, class)
sappl...
Why is parenthesis in print voluntary in Python 2.7?
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In Python 2.x print is actually a special statement and not a function*.
This is also why it ...
Show percent % instead of counts in charts of categorical variables
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This question is currently the #1 hit on google for 'ggplot count vs percentage histogram' so hopefully this helps distill all the information currently housed in comments on the accepted answer.
Remark: If hp is not set as a factor, ggplot returns:
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Postgres: INSERT if does not exist already
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