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Pandas selecting by label sometimes return Series, sometimes returns DataFrame
In Pandas, when I select a label that only has one entry in the index I get back a Series, but when I select an entry that has more then one entry I get back a data frame.
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How do you connect to multiple MySQL databases on a single webpage?
...spread out across a few databases and want to put all the information onto one webpage using PHP. I was wondering how I can connect to multiple databases on a single PHP webpage.
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Is it possible to run one logrotate check manually?
Is it possible to run one iteration of logrotate manually without scheduling it on some interval?
8 Answers
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Why Qt is misusing model/view terminology?
...t's naming is misleading. In my opinion however, the problem is not Qt's alone, but is shared by all frameworks that allow us to adhere to the principle of separation of concerns when implementing our UIs. When someone comes up with such a framework, and finds a good way to keep "things" separated, ...
Are there any naming convention guidelines for REST APIs? [closed]
...standards for naming conventions within the API (eg: URL endpoint path components, querystring parameters)? Are camel caps the norm, or underscores? others?
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Why use pointers? [closed]
...d printf to print the content of the memory address pointed to by 'a' plus one (in this example above), and we wouldn't have had to put the * in front:
printf("Second char is: %s", (a+1)); /* WRONG */
But this would not have just printed the second character, but instead all characters in the nex...
Why should I learn Lisp? [closed]
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One of the main uses for Lisp is in Artificial Intelligence. A friend of mine at college took a graduate AI course and for his main project he wrote a "Lights Out" solver in Lisp. Multiple versions of his program utilized sl...
Why should I prefer to use member initialization lists?
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Apart from the performance reasons mentioned above, if your class stores references to objects passed as constructor parameters or your class has const variables then you don't have any choice except using initializer lists.
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Average of 3 long integers
.../ 3
Note that the above sample does not always work properly when having one or more negative values.
As discussed with Ulugbek, since the number of comments are exploding below, here is the current BEST solution for both positive and negative values.
Thanks to answers and comments of Ulugbek Um...
Which machine learning classifier to choose, in general? [closed]
...ion Approach
There are different algorithms within each approach mentioned above. The choice of a particular algorithm depends upon the size of the dataset.
Source: http://scikit-learn.org/stable/tutorial/machine_learning_map/
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