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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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Alternate FizzBuzz Questions [closed]
Anybody have any good FizzBuzz type questions that are not the FizzBuzz problem?
14 Answers
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What is the difference between a mutable and immutable string in C#?
What is the difference between a mutable and immutable string in C#?
15 Answers
15
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Learn C first before learning Objective-C [closed]
Being an aspiring Apple developer, I want to get the opinions of the community if it is better to learn C first before moving into Objective-C and ultimately the Cocoa Framework?
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Assign a variable inside a Block to a variable outside a Block
I'm getting an error
8 Answers
8
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How can I preview a merge in git?
I have a git branch (the mainline, for example) and I want to merge in another development branch. Or do I?
11 Answers
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Protecting Java Source Code From Being Accessed [closed]
Last week, I had to create a little GUI for homework.
None of my school mates did it. They have stolen my one from where we had to upload it and then they uploaded it again as theirs. When I told my teacher it was all my work he did not believe me.
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Utility classes are evil? [closed]
I saw this thread
14 Answers
14
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Can you split a stream into two streams?
I have a data set represented by a Java 8 stream:
10 Answers
10
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Are iframes considered 'bad practice'? [closed]
Somewhere along the line I picked up the notion that using iframes is 'bad practice'.
11 Answers
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