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Remove duplicated rows using dplyr
...rame [3 x 3]
## Groups: x, y
##
## x y z
## 1 0 1 1
## 2 1 0 2
## 3 1 1 4
(In dplyr 0.2 you won't need the dummy z variable and will just be
able to write row_number() == 1)
I've also been thinking about adding a slice() function that would
work like:
df %>% group_by(x, y) %>% slice(fro...
How to branch with TortoiseHG
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edited Aug 4 '17 at 23:44
SSteve
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Finding the index of elements based on a condition using python list comprehension
... Mike GrahamMike Graham
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Rails - Validate Presence Of Association?
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Convert varchar to uniqueidentifier in SQL Server
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SELECT CAST(
SUBSTRING(@uuid, 1, 8) + '-' + SUBSTRING(@uuid, 9, 4) + '-' + SUBSTRING(@uuid, 13, 4) + '-' +
SUBSTRING(@uuid, 17, 4) + '-' + SUBSTRING(@uuid, 21, 12)
AS UNIQUEIDENTIFIER)
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Providing a default value for an Optional in Swift?
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Customizing the template within a Directive
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