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Summarizing multiple columns with dplyr? [duplicate]
...;
#> 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(purrrlyr)
df %&...
How to get result of console.trace() as string in javascript with chrome or firefox?
...ct.evaluate (unknown source)
and in Firefox:
@http://www.google.com.ua/:87 _firebugInjectedEvaluate("with(_FirebugCommandLine){try { var a = {}; a.debug() } catch(ex) {console.log(ex.stack)}\n};")
@http://www.google.com.ua/:87 _firebugEvalEvent([object Event])
@http://www.google.com.ua/:67
...
Selecting with complex criteria from pandas.DataFrame
...4
DSMDSM
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Add a new element to an array without specifying the index in Bash
...
ghostdog74ghostdog74
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What is the difference between CurrentCulture and CurrentUICulture properties of CultureInfo in .NET
...wered May 12 '16 at 13:52
Sebris87Sebris87
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How To Check If A Key in **kwargs Exists?
...7
DSMDSM
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how does multiplication differ for NumPy Matrix vs Array classes?
....289, 0.809],
[ 0.539, 0.213, 0.805, 0.61 , 0.677],
[ 0.269, 0.071, 0.377, 0.25 , 0.692],
[ 0.274, 0.206, 0.655, 0.062, 0.229],
[ 0.397, 0.115, 0.083, 0.19 , 0.701]])
>>> LA.matrix_rank(m)
5
matrix condition:
>>> a1 = NP.random.randin...
How do I convert a hexadecimal color to rgba with the Less compiler?
...with Less PHP I am getting the following error - @colorGold: color('#C6AF87'); .box { background-color: rgba(red(@colorGold),green(@colorGold),blue(@colorGold),0.3); } Error is - Could not compile CSS file (screen.less): color expected for red(): failed at `background-color: rgba(red(@co...
What is the use for Task.FromResult in C#
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269
There are two common use cases I've found:
When you're implementing an interface that allows...
Naming convention for utility classes in Java
...wered Apr 20 '10 at 16:16
KSwift87KSwift87
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