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Do I need to disable NSLog before release Application?

... get debug messages. When you're ready to release a beta or final release, all those DLog lines automatically become empty and nothing gets emitted. This way there's no manual setting of variables or commenting of NSLogs required. Picking your build target takes care of it. ...
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Multiple linear regression in Python

...as some other model evaluation criteria. If you want the stuff like in Akavall's answer, statsmodels has some more R-like diagnostics. – djs Mar 17 '16 at 18:56 ...
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What is the difference between ManualResetEvent and AutoResetEvent in .NET?

...or. The ManualResetEvent is the door, which needs to be closed (reset) manually. The AutoResetEvent is a tollbooth, allowing one car to go by and automatically closing before the next one can get through. share | ...
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How can I add reflection to a C++ application?

...rate the data about each field(plus the field itself). This macro will be called like this: REFLECTABLE ( (const char *) name, (int) age ) So using Boost.PP we iterate over each argument and generate the data like this: // A helper metafunction for adding const to a type template<clas...
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Python integer division yields float

... @JonathanSternberg except for all the code that was written for python 2.0. I feel like the role of / and // should be reversed to keep backwards compatibility. Also, in pretty much every other language / preserves type. i would make more sense then fo...
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Referring to the null object in Python

... SyntaxError: cannot assign to keyword It's therefore safe to assume that all None references are the same. There isn't any "custom" None. To test for None use the is operator When writing code you might be tempted to test for Noneness like this: if value==None: pass Or to test for falsehood l...
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How to create a video from images with FFmpeg?

...pix_fmt yuv420p out.ogg Your images should of course be sorted alphabetically, typically as: 0001-first-thing.jpg 0002-second-thing.jpg 0003-and-third.jpg and so on. I would also first ensure that all images to be used have the same aspect ratio, possibly by cropping them with imagemagick or n...
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Show current assembly instruction in GDB

...x │ │0x7ffff740d769 <__libc_start_main+233> callq *0x18(%rsp) │ >│0x7ffff740d76d <__libc_start_main+237> mov %eax,%edi │ │0x7ffff740d76f <__libc_start_main+239> callq 0x7ffff7427970 <exit> ...
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How to duplicate sys.stdout to a log file?

...est way to accomplish logging when a python app is making a lot of system calls? 17 Answers ...
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How do you debug PHP scripts? [closed]

...r_dump and print at various points to see where your flow goes wrong. When all else fails though and all I have is SSH and vim I still var_dump()/die() to find where the code goes south. share ...