大约有 3,000 项符合查询结果(耗时:0.0161秒) [XML]

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Determine the data types of a data frame's columns

...more information about class, typeof, and the middle child, mode, see this excellent SO thread: A comprehensive survey of the types of things in R. 'mode' and 'class' and 'typeof' are insufficient. share | ...
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How do I copy a string to the clipboard on Windows using Python?

... You can use the excellent pandas, which has a built in clipboard support, but you need to pass through a DataFrame. import pandas as pd df=pd.DataFrame(['Text to copy']) df.to_clipboard(index=False,header=False) ...
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Is it possible only to declare a variable without assigning any value in Python?

... Excellent answer – Ben Mar 15 '18 at 21:14 add a comment  |  ...
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Round a double to 2 decimal places [duplicate]

...t.println(new BigDecimal("1.03").subtract(new BigDecimal("0.41"))); Some excellent further reading on the topic: Item 48: "Avoid float and double if exact answers are required" in Effective Java (2nd ed) by Joshua Bloch What Every Programmer Should Know About Floating-Point Arithmetic If you...
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snprintf and Visual Studio 2010

... the _s functions do use template magic to infer buffer sizes, and that is excellent. – Bruce Dawson Nov 22 '14 at 0:23 add a comment  |  ...
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HTML Form: Select-Option vs Datalist-Option

... Excellent answer!! Could you please explain your second bullet? What do you mean by "option groups to organize the display"? Thanks. – Govind Rai Sep 26 '16 at 6:34 ...
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Java Singleton and Synchronization

... Excellent answer, though I didn't get some part of it. Can you elaborate "Further, the class loader guarantees that all static initialization is complete before you get access to the class - that's what gives you thread-safet...
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CSS to stop text wrapping under image

... This is excellent for displaying code blocks that might have to contend with images or floating sidebars nearby. – AlexMA Apr 2 '14 at 2:24 ...
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HTML character decoding in Objective-C / Cocoa Touch

... Dude, excellent functions. Your stringByDecodingXMLEntities method made my day! Thanks! – Brian Moeskau Jun 8 '10 at 6:41 ...
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Generate URL in HTML helper

... Excellent approach because it reuses an existing object rather than creating a new one. – Mike Mar 11 '17 at 5:04 ...