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How to convert a factor to integer\numeric without loss of information?

...nction in your global environment, but you might cause problems if you actually register it as an S3 method. – Joshua Ulrich Apr 18 '14 at 12:03 1 ...
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How to get the IP address of the docker host from inside a docker container

...r, that's what bridge IP can give you (of course in the stndard "home" installation). Why anybody would need "real" host IP if it can be even outside of docker bridge and can be unaccessible? This is the solution for all people who just installed docker and want to play with it in a short time. ...
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How to print the full NumPy array, without truncation?

...ld instead of a.size <= _summaryThreshold, and np.nan returns False for all >/</>=/<= comparisons. 'nan' only happens to work due to fragile implementation details of Python 2's mixed-type comparison logic; it breaks completely on Python 3. – user2357112 supports...
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Optional Methods in Java Interface

...lections are an exception" suggests a very fuzzy understanding of what's really going on here. It's important to realize that there are sort of two levels of conforming to an interface: What the Java language can check. This pretty much just boils down to: is there some implementation for each of...
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Auto line-wrapping in SVG text

...h, it needs to use one of the featurestrings defined in the svg spec. The fallback will never be used in your example. See w3.org/TR/SVG11/feature.html and w3.org/TR/SVG11/struct.html#SwitchElement. – Erik Dahlström Feb 14 '11 at 13:43 ...
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What is the best project structure for a Python application? [closed]

...l architecture of your application. /foo /bar /baz I recommend putting all of this under the "name-of-my-product" directory. So, if you're writing an application named quux, the directory that contains all this stuff is named /quux. Another project's PYTHONPATH, then, can include /path/to/quu...
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std::unique_ptr with an incomplete type won't compile

... I find your first solution (adding the foo destructor) allows the class declaration itself to compile, but declaring an object of that type anywhere results in the original error ("invalid application of 'sizeof'..."). – Jeff Trull Sep 30 '1...
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What is “2's Complement”?

...lement. To understand, you have to think of the numbers in binary. It basically says, for zero, use all 0's. for positive integers, start counting up, with a maximum of 2(number of bits - 1)-1. for negative integers, do exactly the same thing, but switch the role of 0's and 1's (so instead of start...
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How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?

...iles. # sudo /etc/init.d/apparmor reload WARNING: the change above will allow MySQL to read and write to the /data directory. We hope you've already considered the security implications of this. share | ...
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Replace one character with another in Bash

.... Example: foo=" " # replace first blank only bar=${foo/ /.} # replace all blanks bar=${foo// /.} See http://tldp.org/LDP/abs/html/string-manipulation.html for more details. share | improve th...