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Deleting DataFrame row in Pandas based on column value

...sking: In [56]: df Out[56]: line_date daysago line_race rating raw wrating 0 2007-03-31 62 11 56 1.000 56.000 1 2007-03-10 83 11 67 1.000 67.000 2 2007-02-10 111 9 66 1.000 66.000 3 2007-01-13 139 10 ...
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Remove all but numbers from NSString

I have an NSString (phone number) with some parenthesis and hyphens as some phone numbers are formatted. How would I remove all characters except numbers from the string? ...
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Android: Test Push Notification online (Google Cloud Messaging) [closed]

... : key=your key //Google API KEY Content-Type : application/json JSON (raw) : { "registration_ids":["yours"], "data": { "Hello" : "World" } } on success you will get Response : { "multicast_id": 6506103988515583000, "success": 1, "failure": 0, "canonical_ids": 0, "...
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List of special characters for SQL LIKE clause

...KE '_ean' finds all four-letter first names that end with ean (Dean, Sean, and so on). [ ] Any single character within the specified range ([a-f]) or set ([abcdef]). WHERE au_lname LIKE '[C-P]arsen' finds author last names ending with arsen and starting with any single character between C and P, fo...
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The input is not a valid Base-64 string as it contains a non-base 64 character

...ng as JSON, that string will include the opening and closing quotes in the raw response. So your response should probably look like: "abc123XYZ==" or whatever...You can try confirming this with Fiddler. My guess is that the result.Content is the raw string, including the quotes. If that's the ca...
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What is the combinatory logic equivalent of intuitionistic type theory?

I recently completed a university course which featured Haskell and Agda (a dependent typed functional programming language), and was wondering if it was possible to replace lambda calculus in these with combinatory logic. With Haskell this seems possible using the S and K combinators, thus making i...
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Saving a Numpy array as an image

...ine order and add null bytes at the start width_byte_4 = width * 4 raw_data = b''.join( b'\x00' + buf[span:span + width_byte_4] for span in range((height - 1) * width_byte_4, -1, - width_byte_4) ) def png_pack(png_tag, data): chunk_head = png_tag + data ...
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Design Patterns web based applications [closed]

...o implement. But you end up with a simpler model and view wherein all the "raw" Servlet API is abstracted completely away. You shouldn't have the need to gather, convert and validate the request parameters yourself. The Controller does this task and sets the gathered, converted and validated request...
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How do I create a link using javascript?

... There are a couple of ways: If you want to use raw Javascript (without a helper like JQuery), then you could do something like: var link = "http://google.com"; var element = document.createElement("a"); element.setAttribute("href", link); element.innerHTML = "your text";...
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Matplotlib Legends not working

...uple of line objects, no matter how many are actually created from the command. Without the comma, "plot1" and "plot2" are tuples instead of line objects, making the later call to plt.legend() fail. The comma implicitly unpacks the results so that instead of a tuple, "plot1" and "plot2" automatica...