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Regular expression for matching latitude/longitude coordinates?
...ates. For matching a double-precision number I've used (\-?\d+(\.\d+)?) , and tried to combine that into a single expression:
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Convert Pandas column containing NaNs to dtype `int`
I read data from a .csv file to a Pandas dataframe as below. For one of the columns, namely id , I want to specify the column type as int . The problem is the id series has missing/empty values.
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Minimizing NExpectation for a custom distribution in Mathematica
...a minimum requires either to set the first derivative of the function zero and solve for a solution. Since your function is quite complicated (and probably not differentiable), the second possibility is to do a numerical minimization, which requires many evaluations of your function. Ergo, it is ver...
Returning first x items from array
...his case it is unrelated to the order. it is just about the first 5 items. and you can't use array_slice here.
– ESCOBAR
Jun 10 '14 at 16:20
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Add timestamps to an existing table
...pecified above, Rails will still treat these columns as timestamp columns, and update the values normally.
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python: how to send mail with TO, CC and BCC?
...esting purposes to populate few hundred email boxes with various messages, and was going to use smtplib for that. But among other things I need to be able to send messages not only TO specific mailboxes, but CC and BCC them as well. It does not look like smtplib supports CC-ing and BCC-ing while...
Visual Studio opens the default browser instead of Internet Explorer
When I debug in Visual Studio, Firefox opens and that is annoying because of the hookups that Internet Explorer and Visual Studio have, such as when you close the Internet Explorer browser that starting debug opened, Visual Studio stops debugging. How can I get Visual Studio to open Internet Explor...
What is the difference between single-quoted and double-quoted strings in PHP?
...le confused why I see some code in PHP with string placed in single quotes and sometimes in double quotes.
12 Answers
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How to bind multiple values to a single WPF TextBlock?
... </TextBlock.Text>
</TextBlock>
Giving Name a value of Foo and ID a value of 1, your output in the TextBlock would then be Foo + 1.
Note: that this is only supported in .NET 3.5 SP1 and 3.0 SP2 or later.
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ActionController::InvalidAuthenticityToken
...which were page cached. Pages got buffered with a stale authenticity token and all actions using the methods post/put/delete where recognized as forgery attempts. Error (422 Unprocessable Entity) was returned to the user.
The solution for Rails 3:
Add:
skip_before_filter :verify_authenticity_toke...