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In Ruby, is there an Array method that combines 'select' and 'map'?
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115
I usually use map and compact together along with my selection criteria as a postfix if. compact...
Extract a dplyr tbl column as a vector
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iris2 %>% pull('Species')
iris2 %>% pull(Species)
iris2 %>% pull(5)
Resulting in...
[1] 21.0 21.0 22.8 21.4 18.7 18.1 14.3 24.4 22.8 19.2 17.8 16.4 17.3 15.2 10.4 10.4 14.7 32.4 30.4 33.9 21.5 15.5 15.2 13.3 19.2 27.3 26.0 30.4 15.8 19.7 15.0 21.4
And it also works fine with data fra...
Replacing a fragment with another fragment inside activity group
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251
Fragments that are hard coded in XML, cannot be replaced. If you need to replace a fragment wit...
Get line number while using grep
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559
grep -n SEARCHTERM file1 file2 ...
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Getting the class name of an instance?
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Boris
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answered Feb 4 '09 at 12:02
sykorasykora
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Java - Convert integer to string [duplicate]
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answered Feb 21 '11 at 20:45
BozhoBozho
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What version of javac built my jar?
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Soundlink
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answered Jul 22 '10 at 21:12
Jonathon FaustJonathon Faust
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How to split a string, but also keep the delimiters?
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answered Feb 5 '10 at 10:09
NawaManNawaMan
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MySQL connection not working: 2002 No such file or directory
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Alec GorgeAlec Gorge
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