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Random row selection in Pandas dataframe
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Something like this?
import random
def some(x, n):
return x.ix[random.sample(x.index, n)]
Note: As of Pandas v0.20.0, ix has been deprecated in favour of loc for label based indexing.
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iPhone SDK: what is the difference between loadView and viewDidLoad?
When working with views and view controllers in an iPhone app, can anyone explain the difference between loadView and viewDidLoad?
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C++, copy set to vector
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You need to use a back_inserter:
std::copy(input.begin(), input.end(), std::back_inserter(output));
std::copy doesn't add elements to the container into which you are inserting: it can't; it only has an iterator into the container. Because o...
How do you delete all text above a certain line
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Rich
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answered Nov 12 '10 at 5:38
Andy WhiteAndy Wh...
How to determine if a list of polygon points are in clockwise order?
Having a list of points, how do I find if they are in clockwise order?
23 Answers
23
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How to clear jQuery validation error messages?
... plugin for client side validation.
Function editUser() is called on click of 'Edit User' button, which displays error messages.
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VIM Ctrl-V Conflict with Windows Paste
...The problem is that I want to use Ctrl V as a visual mode. However, this key has conflict with Windows paste. How can I reset this key back to VIM visual mode instead of pasting. I prefer to set this in my _vimrc configuration file.
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How to run multiple shells on Emacs
I am using Emacs 23.3.1 on windows 7. I know that I can run shell from emacs using M-x shell. I would like to have multiple shell windows in the same time, but typing M-x shell a second time just opens me the same shell window.
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How do I get today's date in C# in mm/dd/yyyy format?
...eTime.Now.ToString("M/d/yyyy");
http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx
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How do I overload the [] operator in C# [duplicate]
I would like to add an operator to a class. I currently have a GetValue() method that I would like to replace with an [] operator.
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