大约有 11,000 项符合查询结果（耗时：0.0110秒） [XML]
Convert pandas dataframe to NumPy array
... columns, but as_matrix was at least one of them!
– Jérémie
Jul 31 '19 at 23:50
1
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Java null check why use == instead of .equals()
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do you mean public int data?
– Jé Queue
Dec 22 '10 at 16:10
@Xepoch: No, I don't generally creat...
Remove all whitespace in a string
... answered Nov 25 '11 at 13:56
Cédric JulienCédric Julien
65.6k1212 gold badges108108 silver badges120120 bronze badges
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How can I replace a newline (\n) using sed?
...not do it. Please, clarify to use different tool.
– Léo Léopold Hertz 준영
Aug 9 '09 at 19:18
90
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How can I detect if a selector returns null?
...my answer porting Rails' presence method.
– Marc-André Lafortune
Feb 26 '13 at 22:22
5
If you wa...
Extracting specific columns from a data frame
... answered Apr 10 '12 at 9:50
Stéphane LaurentStéphane Laurent
39.9k1313 gold badges7373 silver badges143143 bronze badges
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Build an ASCII chart of the most commonly used words in a given text [closed]
...Edit: Replaced semicolons by line breaks for "readability". :P
Edit 2: Shtééf pointed out I forgot the trailing space - fixed that.
Edit 3: Removed the trailing space again ;)
share
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Manual deployment vs. Amazon Elastic Beanstalk
...nstance and setting up tomcat server and deploy etc for a typical java web applicaion. Are load balancing, Monitoring and autoscaling the only advantages?
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Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
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Here's a comment by React team member Sebastian Markbåge which sheds some light:
React does the diffing on the output (which is a known serializable format, DOM attributes). This means that the source data can be of any format. It can be immutable data structures and state in...
Setting background colour of Android layout element
...ID_SDK\samples folder (for various android versions). The whole api sample app comes also preinstalled in every emulator instance.
– user658042
Sep 11 '11 at 14:16
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