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How to read data when some numbers contain commas as thousand separator?

..."", and then convert the string to numeric using as.numeric: y <- c("1,200","20,000","100","12,111") as.numeric(gsub(",", "", y)) # [1] 1200 20000 100 12111 This was also answered previously on R-Help (and in Q2 here). Alternatively, you can pre-process the file, for instance with sed in uni...
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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?

...ated the alias and allowed the branch to be predicted correctly Your Core2 doesn't keep a separate history record for each conditional jump. Instead it keeps a shared history of all conditional jumps. One disadvantage of global branch prediction is that the history is diluted by irrelevant inform...
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How to prevent line break at hyphens on all browsers

... 52 I’m afraid there’s no simpler way to do it reliably than splitting the text to “words” (...
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How to add elements of a Java8 stream into an existing List

... 204 NOTE: nosid's answer shows how to add to an existing collection using forEachOrdered(). This i...
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Java: Difference between the setPreferredSize() and setSize() methods in components

... Dave Jarvis 27.6k3535 gold badges157157 silver badges281281 bronze badges answered Nov 23 '09 at 15:32 SboddSbodd...
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CoffeeScript, When to use fat arrow (=>) over arrow (->) and vice versa

... | edited Dec 21 '14 at 19:59 answered Jan 23 '12 at 0:18 ...
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Change project name on Android Studio

... 1 2 Next 554 ...
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Does the join order matter in SQL?

... 231 For INNER joins, no, the order doesn't matter. The queries will return same results, as long a...
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Generating an MD5 checksum of a file

... | edited Jan 29 at 13:51 user2653663 2,41811 gold badge1414 silver badges1919 bronze badges ...
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What is the difference between UTF-8 and Unicode?

... 520 To expand on the answers others have given: We've got lots of languages with lots of character...