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What is “entropy and information gain”?
I am reading this book ( NLTK ) and it is confusing. Entropy is defined as :
7 Answers
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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
I have a data frame df and I use several columns from it to groupby :
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How do I find the time difference between two datetime objects in python?
...nly holds the difference.
In the example above it is 0 minutes, 8 seconds and 562000 microseconds.
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How to host a Node.Js application in shared hosting [closed]
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You can run node.js server on a typical shared hosting with Linux, Apache and PHP (LAMP). I have successfully installed it, even with NPM, Express and Grunt working fine. Follow the steps:
1) Create a new PHP file on the server with the following code and run it:
<?php
//Download and extract t...
Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0
...anyone, I moved the GitExtensions bit in my PATH to be the very first item and it seems to have resolved the issue for me. (I put the git/cmd itself 2nd - not sure if that was part of it). A bit easier than a reboot or .dll shuffling.
– jinglesthula
Dec 2 '16 ...
How to remove convexity defects in a Sudoku square?
...ving a Sudoku from an input image using OpenCV (as in Google goggles etc). And I have completed the task, but at the end I found a little problem for which I came here.
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How can I declare and define multiple variables in one line using C++?
...ight, width; might turn into uint8_t height; uint16_t width; in the future and should have been uint8_t height; uint8_t width; to begin with).
– altendky
Jun 17 '15 at 15:08
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How to create custom easing function with Core Animation?
...tion curves in Core Animation
But I think it can be made a little simpler and more readable by using blocks. So we can define a category on CAKeyframeAnimation that looks something like this:
CAKeyframeAnimation+Parametric.h:
// this should be a function that takes a time value between
// 0.0 a...
How to remove unwanted space between rows and columns in table?
How do I remove the extra space between the rows and columns in the table.
14 Answers
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Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...我使用了以下代码来实现：
if not DokanFileInfo.IsDirectory and (CreationDisposition in [CREATE_NEW, OPEN_ALWAYS, CREATE_ALWAYS]) then begin
MySetFileDate(DokanFileInfo, DateTimeToFileDate(Now)); //Cleanup里会判断FileDate来决定是否保存到远程目录
end;
5.WriteFile: ...