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Drop rows with all zeros in pandas data frame
I can use pandas dropna() functionality to remove rows with some or all columns set as NA 's. Is there an equivalent function for dropping rows with all columns having value 0?
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How do I close all open tabs at once?
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Shortest/simplest/fastest way would be:
:qa
To save work in all tabs and quit:
:wqa
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Simulator slow-motion animations are now on?
...as experimenting, trying to see if i could get navigation items to animate and scroll between each other.
11 Answers
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How to update a value, given a key in a hashmap?
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In fact that is the most robust and scalable enterprise solution.
– Lavir the Whiolet
Nov 11 '10 at 18:42
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minimum double value in C/C++
Is there a standard and/or portable way to represent the smallest negative value (e.g. to use negative infinity) in a C(++) program?
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Fully custom validation error message with Rails
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Now, the accepted way to set the humanized names and custom error messages is to use locales.
# config/locales/en.yml
en:
activerecord:
attributes:
user:
email: "E-mail address"
errors:
models:
user:
attributes:
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Forward declaration of nested types/classes in C++
...s someone know why it is not possible ? It seems there is valid use cases, and this lack prevents architecture consistency in some situations.
– Maël Nison
Nov 1 '12 at 16:10
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Which sort algorithm works best on mostly sorted data? [closed]
...e highly scientific method of watching animated gifs I would say Insertion and Bubble sorts are good candidates.
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prevent property from being serialized in web API
I'm using an MVC 4 web API and asp.net web forms 4.0 to build a rest API. It's working great:
11 Answers
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How to line-break from css, without using ?
... same HTML structure, you must have something to distinguish between Hello and How are you.
I suggest using spans that you will then display as blocks (just like a <div> actually).
p span {
display: block;
}
<p><span>hello</span><span>How are you</span>...