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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
...
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 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...
Naming convention for utility classes in Java
...wered Apr 20 '10 at 16:16
KSwift87KSwift87
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Finding what branch a Git commit came from
... won't find it. That said, you can do this:
git reflog show --all | grep a871742
to find commit a871742. Note that you MUST use the abbreviatd 7 first digits of the commit. The output should be something like this:
a871742 refs/heads/completion@{0}: commit (amend): mpc-completion: total rewrite...
Adding a new array element to a JSON object
..."image":"1461449637106.jpeg"},{"id":"94","nameEn":"Product Name3","price":"87","image":"1461449679506.jpeg"}];
var fields = []; //new array
var json = JSON.parse(alreadyData); //just parse in one variable
var json = JSON.parse(tableColumns);
for (var i = 0; i < json.length; i++) {
fields.pus...
Regular expression to match non-ASCII characters?
...remy Ruten
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Why is printing to stdout so slow? Can it be sped up?
...
Pi DelportPi Delport
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Throwing the fattest people off of an overloaded airplane.
...ganLior Kogan
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