大约有 40,000 项符合查询结果(耗时:0.0389秒) [XML]

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Prevent row names to be written to file when using write.csv

...te.csv(data, "baseR_file.csv", row.names = F) 13.8066424 13.8248250 13.9118324 13.8776993 13.9269675 14.3241311 10 ## write_csv(data, "readr_file.csv") 3.6742610 3.7999409 3.8572456 3.8690681 3.8991995 4.0637453 10 ## fwrite(data, "datatable_file.csv") 0.3...
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How do you get the logical xor of two variables in Python?

...nt to bitwise xor when the domain is restricted to 0 and 1. So the logical_xor function would be implemented like: def logical_xor(str1, str2): return bool(str1) ^ bool(str2) Credit to Nick Coghlan on the Python-3000 mailing list. ...
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val() vs. text() for textarea

... Yoav Kadosh 3,23544 gold badges2323 silver badges5252 bronze badges answered Apr 10 '14 at 16:50 Kshitij Saxena -KJ-Kshitij Saxena -K...
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How can I concatenate two arrays in Java?

...| edited May 30 '19 at 13:32 community wiki 8 r...
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Authorize a non-admin developer in Xcode / Mac OS

... You need to add your OS X user name to the _developer group. See the posts in this thread for more information. The following command should do the trick: sudo dscl . append /Groups/_developer GroupMembership <username> ...
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Maven: how to do parallel builds?

... JonnyRaaJonnyRaa 5,83244 gold badges3939 silver badges4242 bronze badges add a co...
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How do you write tests for the argparse portion of a python module? [closed]

...ou should refactor your code and move the parsing to a function: def parse_args(args): parser = argparse.ArgumentParser(...) parser.add_argument... # ...Create your parser as you like... return parser.parse_args(args) Then in your main function you should just call it with: parse...
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return query based on date

...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
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What is the difference between print and puts?

... There is another thing ... extend the array class and override the to_s method. puts doesn't use the new to_s for an object of your new class while print does – kapv89 Oct 28 '12 at 18:30 ...
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How to add item to the beginning of List?

... Use Insert method of List<T>: List.Insert Method (Int32, T): Inserts an element into the List at the specified index. var names = new List<string> { "John", "Anna", "Monica" }; names.Insert(0, "Micheal"); // Insert to the first element ...