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How to print a groupby object
...like a bug to me. I created an issue.
But a groupby operation doesn't actually return a DataFrame sorted by group. The .head() method is a little misleading here -- it's just a convenience feature to let you re-examine the object (in this case, df) that you grouped. The result of groupby is separat...
Reduce, fold or scan (Left/Right)?
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In general, all 6 fold functions apply a binary operator to each element of a collection. The result of each step is passed on to the next step (as input to one of the binary operator's two arguments). This way we can cumulate a result.
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How to print Boolean flag in NSLog?
... @BoltClock 0/1 isn't meaningful in log output? I thought we were all programmers here lol
– Cbas
Apr 3 '16 at 21:04
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C++ IDE for Macs [closed]
...dering between Xcode and Eclipse. Xcode's layout, however, is weird. Especially if he was using Visual C++ to teach the class. Eclipse or Netbeans would be a much better option.
– michael.bartnett
Dec 6 '10 at 6:22
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How to disable the highlight control state of a UIButton?
... to Custom.
In IB you can uncheck "Highlight adjusts image".
Programmatically you can use theButton.adjustsImageWhenHighlighted = NO;
Similar options are available for the "disabled" state as well.
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scanf() leaves the new line char in the buffer
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The scanf() function skips leading whitespace automatically before trying to parse conversions other than characters. The character formats (primarily %c; also scan sets %[…] — and %n) are the exception; they don't skip whitespace.
Use " %c" with a leading blank to skip opt...
Get first and last day of month using threeten, LocalDate
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Going with this one, uses the API resources specifically made to handle this particular problem.
– jpangamarca
Jul 11 '17 at 16:53
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Is it possible to cache POST methods in HTTP?
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The corresponding RFC 2616 in section 9.5 (POST) allows the caching of the response to a POST message, if you use the appropriate headers.
Responses to this method are not cacheable, unless the response
includes appropriate Cache-Control or Expires header fields. Howe...
byte[] to file in Java
...u had created the instance of "fos" inside the try. And this will automatically close the OutputStream
}
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What is path of JDK on Mac ? [duplicate]
...k and I need to set JAVA_HOME to proper path of JDK. I downloaded JDK, installed it and now I can't find it anywhere. I was looking at the internet for the solution, but there is no folder Libraries/Java.
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