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Remove duplicated rows using dplyr
I have a data.frame like this -
6 Answers
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How might I convert a double to the nearest integer value?
How do you convert a double into the nearest int?
8 Answers
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How to style dt and dd so they are on the same line?
Using CSS, how can I style the following:
17 Answers
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How do I detect unsigned integer multiply overflow?
I was writing a program in C++ to find all solutions of a b = c , where a , b and c together use all the digits 0-9 exactly once. The program looped over values of a and b , and it ran a digit-counting routine each time on a , b and ab to check if the digits condition was satisfied.
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Programmatically generate video or animated GIF in Python?
I have a series of images that I want to create a video from. Ideally I could specify a frame duration for each frame but a fixed frame rate would be fine too. I'm doing this in wxPython, so I can render to a wxDC or I can save the images to files, like PNG. Is there a Python library that will al...
How do I break out of nested loops in Java?
I've got a nested loop construct like this:
35 Answers
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Maximum single-sell profit
Suppose we are given an array of n integers representing stock prices on a single day. We want to find a pair (buyDay, sellDay) , with buyDay ≤ sellDay , such that if we bought the stock on buyDay and sold it on sellDay , we would maximize our profit.
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What's the UIScrollView contentInset property for?
Can someone explain to me what the contentInset property in a UIScrollView instance is used for? And maybe provide an example?
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How to use arguments from previous command?
I know that Esc + . gives you the last argument of the last command.
11 Answers
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UITextfield leftView/rightView padding on iOS7
The leftView and rightView views of an UITextField on iOS7 are really close to the textfield border.
27 Answers
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