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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
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I came up with a way using a list comprehension: df[[(len(x) < 2) for x in df['column name']]] but yours is much nicer. Thanks for your help!
– sjs
Dec 13 '12 at 4:17
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Javascript when to use prototypes
... more like instance method.
The object's approach is like Static methods.
https://developer.mozilla.org/en/Introduction_to_Object-Oriented_JavaScript
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Java SafeVarargs annotation, does a standard or best practice exist?
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CSS hexadecimal RGBA?
...re support this notation now, Edge still missing but will probably follow (https://caniuse.com/#feat=css-rrggbbaa).
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What's an elegant way to conditionally add a class to an HTML element in a view?
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How can I replace text with CSS?
...th a red button that says 'goodbye', using CSS.
Before:
After:
See http://jsfiddle.net/ZBj2m/274/ for a live demo:
Here's our green button:
<button>Hello</button>
button {
background-color: green;
color: black;
padding: 5px;
}
Now let's hide the original element, but a...
Using vagrant to run virtual machines with desktop environment
My company's development environment is based on virtual machines, running on VirtualBox. We would like to move one step further, and use the capabilities of Vagrant to have the description of the machine in a text file and then be able to "raise" that machine based on that text file. Combined to pu...
Check whether a variable is a string in Ruby
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Peak memory usage of a linux/unix process
...use of --pages-as-heap to measure all memory in a process. More info here: http://valgrind.org/docs/manual/ms-manual.html
This will slow down your command significantly.
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How to create a numpy array of all True or all False?
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Now a famous meme: devhumor.com/media/…
– WLGfx
Dec 2 '17 at 10:48
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