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Find the max of two or more columns with pandas

... You can get the maximum like this: >>> import pandas as pd >>> df = pd.DataFrame({"A": [1,2,3], "B": [-2, 8, 1]}) >>> df A B 0 1 -2 1 2 8 2 3 1 >>> df[["A", "B"]] A B 0 1 -2 1 2 8 2 3 1 >>&g...
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What's the need of array with zero elements?

In the Linux kernel code I found the following thing which I can not understand. 5 Answers ...
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Converting from a string to boolean in Python?

Does anyone know how to do convert from a string to a boolean in Python? I found this link . But it doesn't look like a proper way to do it. I.e. using built-in functionality, etc. ...
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Number of lines in a file in Java

I use huge data files, sometimes I only need to know the number of lines in these files, usually I open them up and read them line by line until I reach the end of the file ...
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How do I right align controls in a StatusStrip?

... Eric SchoonoverEric Schoonover 42.8k4242 gold badges146146 silver badges199199 bronze badges ...
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Move window between tmux clients

...-window] [-t dst-window] (alias: movew) This is similar to link-window, except the window at src-window is moved to dst-window. where src-window and dst-window have the form: session:window.pane (session and window can be either name or id). So, supposing you have an 'chat' session wi...
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How to list the contents of a package using YUM?

I know how to use rpm to list the contents of a package ( rpm -qpil package.rpm ). However, this requires knowing the location of the .rpm file on the filesystem. A more elegant solution would be to use the package manager, which in my case is YUM. How can YUM be used to achieve this? ...
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Getting assembly name

... icecrime 63.5k1111 gold badges9090 silver badges105105 bronze badges answered Nov 24 '10 at 11:30 JasterJaster ...
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What exactly do “IB” and “UB” mean?

...t be defined. Using implementation-defined behaviour can be useful, but makes your code less portable. UB: Undefined Behaviour. The standard does not specify how a program invoking undefined behaviour should behave. Also known as "nasal demons" because theoretically it could make demons fly out of...
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Why is reading lines from stdin much slower in C++ than Python?

... reading lines of string input from stdin using Python and C++ and was shocked to see my C++ code run an order of magnitude slower than the equivalent Python code. Since my C++ is rusty and I'm not yet an expert Pythonista, please tell me if I'm doing something wrong or if I'm misunderstanding somet...