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Order data frame rows according to vector with specific order
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236
Try match:
df <- data.frame(name=letters[1:4], value=c(rep(TRUE, 2), rep(FALSE, 2)))
target...
Postgres: Distinct but only for one column
... (having more than 1 mio. rows), but I have also many duplicates. I select 3 fields: id , name , metadata .
3 Answers
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Cannot use ref or out parameter in lambda expressions
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edited Apr 27 '16 at 9:30
silkfire
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answered...
How to create NSIndexPath for TableView
...dexPathForRow:inSection:] to quickly create an index path.
Edit: In Swift 3:
let indexPath = IndexPath(row: rowIndex, section: sectionIndex)
Swift 5
IndexPath(row: 0, section: 0)
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impro...
Convert integer to string Jinja
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edited Apr 3 '15 at 13:58
Ajoy
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an...
What GUI libraries are the JetBrains using?
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139
IntelliJ IDEA is a pure Java Swing application. All the custom components like editor tabs are ...
Split a string on whitespace in Go?
Given an input string such as " word1 word2 word3 word4 " , what would be the best approach to split this as an array of strings in Go? Note that there can be any number of spaces or unicode-spacing characters between each word.
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Use curly braces to initialize a Set in Python
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103
There are two obvious issues with the set literal syntax:
my_set = {'foo', 'bar', 'baz'}
It'...