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Selecting a row of pandas series/dataframe by integer index

... @kilojoules .iloc looks things up by their order in the index (e.g. .iloc[[2]]) is the second "row" in df. That row happens to be at index location 4. .loc looks them up by their index value. So maybe "iloc" is like "i" as in A[i]? :) – Jim K...
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How can I implement a tree in Python?

...so a powerful API with: simple tree creation simple tree modification pre-order tree iteration post-order tree iteration resolve relative and absolute node paths walking from one node to an other. tree rendering (see example above) node attach/detach hookups ...
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Understanding CUDA grid dimensions, block dimensions and threads organization (simple explanation) [

...ng unit. You use blocks according to the specifications of your problem in order to distribute the work to the threads. It is not likely that you can always use blocks of 768 threads for every problem you have. Imagine you have to process a 64x64 image (4096 pixels). 4096/768 = 5.333333 blocks ? ...
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How to check Oracle database for long running queries

... s.sql_hash_value and s.status = 'ACTIVE' and s.username <> 'SYSTEM' order by s.sid,t.piece / This shows locks. Sometimes things are going slow, but it's because it is blocked waiting for a lock: select object_name, object_type, session_id, type, -- Type or system/user l...
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How to ignore files which are in repository?

I have a file (config.php), that is already commited to Git repository, but I want to ignore locally, i.e. I want that file to remain in repository, but force Git to ignore any changes to it. ...
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Java variable number or arguments for a method

... (String...strs, int... ints). What about just any type of argument in any order? – trusktr Oct 4 '13 at 1:49 5 ...
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What are some good Python ORM solutions? [closed]

...ment. I don't understand the logic. How does "hard to find instructions on ORDER BY DESC in the docs" imply "bad for active record pattern"? – jpmc26 Jan 10 '14 at 0:27 ...
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What are the rules for calling the superclass constructor?

...assignment. Keep in mind, that data members are always initialized in the order in which they are declared in the class definition, regardless of their order in the initialization list. To avoid strange bugs, which may arise if your data members depend on each other, you should always make sure th...
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Natural Sort Order in C#

Anyone have a good resource or provide a sample of a natural order sort in C# for an FileInfo array? I am implementing the IComparer interface in my sorts. ...
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TypeError: got multiple values for argument

...the trouble: The error also occurs if the function arguments have changed order - for the same reason as in the accepted answer: the positional arguments clash with the keyword arguments. In my case it was because the argument order of the Pandas set_axis function changed between 0.20 and 0.22: 0...