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Why doesn't Python have a sign function?

...ed behavior for edge cases - which sometimes might require the call to cmp(m>xm>,0). I don't know why it's not a built-in, but I have some thoughts. copysign(m>xm>,y): Return m>xm> with the sign of y. Most importantly, copysign is a superset of sign! Calling copysign with m>xm>=1 is the same as a sign functi...
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How to increase font size in a plot in R?

I am confused. What is the right way to increase font size of tem>xm>t in the title, labels and other places of a plot? 7 Answ...
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Akka Kill vs. Stop vs. Poison Pill?

...question of Akka - I'm reading over Akka Essentials, could someone please em>xm>plain the difference between Akka Stop/Poison Pill vs. Kill ? The book offers just a small em>xm>plaination "Kill is synchronous vs. Poison pill is asynchronous." But in what way? Does the calling actor thread lock during this t...
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Convert int to ASCII and back in Python

...123456789' nchars = len(s) # string to int or long. Type depends on nchars m>xm> = sum(ord(s[byte])<<8*(nchars-byte-1) for byte in range(nchars)) # int or long to string ''.join(chr((m>xm>>>8*(nchars-byte-1))&0m>xm>FF) for byte in range(nchars)) Yields '0123456789' and m>xm> = 22758109892968359442...
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How to update the value stored in Dictionary in C#?

...ange the value. (?) At least, if it doesn't matter to overwrite keys, for em>xm>ample in a situation where it is not em>xm>cluded that keys are written more than once in a loop. Or does somebody see any disadvantages? Especially because .Add has the ptifall for beginners that if the if-wrapper or TryGetVal...
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std::back_inserter for a std::set?

...td::inserter and pass it .begin(): std::set<int> s1, s2; s1 = getAnEm>xm>citingSet(); transform(s1.begin(), s1.end(), std::inserter(s2, s2.begin()), Em>xm>citingUnaryFunctor()); The insert iterator will then call s2.insert(s2.begin(), m>xm>) where m>xm> is the value passed to the iterator when w...
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How to drop into REPL (Read, Eval, Print, Loop) from Python code

...ly force a Python script to drop into a REPL at an arbitrary point in its em>xm>ecution, even if the script was launched from the command line? ...
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Best practices for reducing Garbage Collector activity in Javascript

I have a fairly complem>xm> Javascript app, which has a main loop that is called 60 times per second. There seems to be a lot of garbage collection going on (based on the 'sawtooth' output from the Memory timeline in the Chrome dev tools) - and this often impacts the performance of the application. ...
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What's the difference between Html.Label, Html.LabelFor and Html.LabelForModel

...el gives you a label for an input whose name matches the specified input tem>xm>t (more specifically, for the model property matching the string em>xm>pression): // Model public string Test { get; set; } // View @Html.Label("Test") // Output <label for="Test">Test</label> Html.LabelFor give...
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How to crop an image in OpenCV using Python

...y slicing. import cv2 img = cv2.imread("lenna.png") crop_img = img[y:y+h, m>xm>:m>xm>+w] cv2.imshow("cropped", crop_img) cv2.waitKey(0) share | improve this answer | follow ...