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Summarizing multiple columns with dplyr? [duplicate]
... <dbl>
#> 1 1 3.08 2.98 2.98 2.91
#> 2 2 3.03 3.04 2.97 2.87
#> 3 3 2.85 2.95 2.95 3.06
If you want to summarize only certain columns, use summarise_at or summarise_if functions.
Alternatively, the purrrlyr package provides the same functionality:
library(purr...
How to get a reference to current module's attributes in Python
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Maciej PasternackiMaciej Pasternacki
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Mixing Angular and ASP.NET MVC/Web api?
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What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?
... it is used inside of a function. It was added to C in C99. From C99 §6.4.2.2/1:
The identifier __func__ is implicitly declared by the translator as if, immediately following the opening brace of each function definition, the declaration
static const char __func__[] = "function-name";
appeared,...
Long-lasting FB access-token for server to pull FB page info
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Elad Nava
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answered Feb 21 '14 at 7:11
redhotvengeanceredhotvengeance
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Performance of static methods vs instance methods
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edited Aug 28 '18 at 13:24
Corstian Boerman
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answered Sep 5 '12 ...
How do I include inline JavaScript in Haml?
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Update relationships when saving changes of EF4 POCO objects
Entity Framework 4, POCO objects and ASP.Net MVC2. I have a many to many relationship, lets say between BlogPost and Tag entities. This means that in my T4 generated POCO BlogPost class I have:
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How to sort a list of lists by a specific index of the inner list?
...>>> from operator import itemgetter
>>> L=[[0, 1, 'f'], [4, 2, 't'], [9, 4, 'afsd']]
>>> sorted(L, key=itemgetter(2))
[[9, 4, 'afsd'], [0, 1, 'f'], [4, 2, 't']]
It is also possible to use a lambda function here, however the lambda function is slower in this simple case
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