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Naming returned columns in Pandas aggregate function? [duplicate]
I'm having trouble with Pandas' groupby functionality. I've read the documentation , but I can't see to figure out how to apply aggregate functions to multiple columns and have custom names for those columns.
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UIView with rounded corners and drop shadow?
I’ve been working on an application for a couple of years and received a simple design request: Round the corners on a UIView and add a drop shadow.To do as given below.
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How to compare versions in Ruby?
How to write a piece of code to compare some versions strings and get the newest?
8 Answers
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What is the “assert” function?
I've been studying OpenCV tutorials and came across the assert function; what does it do?
9 Answers
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textarea's rows, and cols attribute in CSS
I'd like to set the textarea 's rows and cols attributes via CSS.
5 Answers
5
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Error: No default engine was specified and no extension was provided
I am working through setting up a http server using node.js and engine. However, I keep running into issues that I have little information on how to resolve I would appreciate some help solving this please.
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Is it .yaml or .yml?
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The nature and even existence of file extensions is platform-dependent (some obscure platforms don't even have them, remember) -- in other systems they're only conventional (UNIX and its ilk), while in still others they have definite se...
Difference between Apache CXF and Axis
What are the advantages of using Apache CXF over Apache Axis and vice versa?
6 Answers
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How to determine the content size of a UIWebView?
...ce we do both frame changes right after each other, the view isn't updated and doesn't flicker.
Of course, we have to wait until the content has been loaded, so we put the code into the -webViewDidFinishLoad: delegate method.
Obj-C
- (void)webViewDidFinishLoad:(UIWebView *)aWebView {
CGRect f...
Flatten an irregular list of lists
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Using generator functions can make your example a little easier to read and probably boost the performance.
Python 2
def flatten(l):
for el in l:
if isinstance(el, collections.Iterable) and not isinstance(el, basestring):
for sub in flatten(el):
yield sub...