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Remove duplicated rows
I have read a CSV file into an R data.frame. Some of the rows have the same element in one of the columns. I would like to remove rows that are duplicates in that column. For example:
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What's the name for hyphen-separated case?
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How do you clear the focus in javascript?
I know this shouldn't be that hard, but I couldn't find the answer on Google.
7 Answers
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How to replace multiple strings in a file using PowerShell
... file. I want to replace multiple instances of strings within this file, and I tried using PowerShell to do the job.
5 Answ...
Show just the current branch in Git
I tried looking for a special Git command for this, but I couldn't find one. Is there anything shorter or faster than the following?
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PHP cURL not working - WAMP on Windows 7 64 bit
I got my WAMP installed on my windows 7 64bit. cURL is not working, but still I got it enabled from the WAMP tray.
14 Ans...
When to use nested classes and classes nested in modules?
I'm pretty familiar with when to use subclasses and modules, but more recently I've been seeing nested classes like this:
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Access to the path is denied
I know this question was asked many times here, but I can't find a solution to my problem.
I'm trying to save image to the folder in .net c# but get this exception:
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Testing whether a value is odd or even
I decided to create simple isEven and isOdd function with a very simple algorithm:
22 Answers
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python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
I have a dataframe with repeat values in column A. I want to drop duplicates, keeping the row with the highest value in column B.
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