大约有 23,000 项符合查询结果(耗时:0.0403秒) [XML]

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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?

... 0.38 0.18 4 C D 0.12 0.59 0.81 0.66 5 C D -0.13 -1.65 -1.64 0.50 6 C D -1.42 -0.11 -0.18 -0.44 7 E F -0.00 1.42 -0.26 1.17 8 E F 0.91 -0.47 1.35 -0.34 9 G H 1.48 -0.63 -1.14 0.17 First let's use .size() to get the row counts: In [3]: df.groupby(['c...
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Make an Installation program for C# applications and include .NET Framework installer into the setup

...ites dialog box, you must download file 'DotNetFX461\NDP461-KB3102436-x86-x64-AllOS-ENU.exe' for item 'Microsoft .NET Framework 4.6.1 (x86 and x64)' to your local machine. For more information, see http://go.microsoft.com/fwlink/?LinkId=616018. – Chris Mar 24 '...
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Counter increment in Bash loop not working

... count=0 base=1 (( count += base )) share | improve this answer | follow | ...
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Generate random numbers using C++11 random library

...f you do understand all the containers and could make an informed decision based on algorithmic complexity. – void.pointer Oct 23 '14 at 22:53  |  ...
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Filtering Pandas DataFrames on dates

... If date column is the index, then use .loc for label based indexing or .iloc for positional indexing. For example: df.loc['2014-01-01':'2014-02-01'] See details here http://pandas.pydata.org/pandas-docs/stable/dsintro.html#indexing-selection If the column is not the index ...
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JavaScript equivalent to printf/String.Format

...available. underscore.string has more features aside from sprintf which is based on sprintf() for JavaScript implementation. Other than that the library is an entirely different project. – Maksymilian Majer Apr 15 '14 at 7:41 ...
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Why does Math.round(0.49999999999999994) return 1?

...ound%28double%29 2. http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6430675 (credits to @SimonNickerson for finding this) 3. http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html#round%28double%29 4. http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/7u40-b43/...
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Is it possible to make a type only movable and not copyable?

... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers. Draft saved Draft discarded ...
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When to use MyISAM and InnoDB? [duplicate]

...he configurable limit (for many versions) has been 2**56 bytes. Maximum of 64 indexes per table InnoDB Limitations: No full text indexing (Below-5.6 mysql version) Cannot be compressed for fast, read-only (5.5.14 introduced ROW_FORMAT=COMPRESSED) You cannot repair an InnoDB table For brief und...
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Check for current Node Version

....28.0', zlib: '1.2.11', brotli: '1.0.7', ares: '1.15.0', modules: '64', nghttp2: '1.34.0', napi: '4', openssl: '1.1.1b', icu: '64.2', unicode: '12.1', cldr: '35.1', tz: '2019a' } share | ...