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Remove duplicated rows using dplyr
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Note: dplyr now contains the distinct function for this purpose.
Original answer below:
library(dplyr)
set.seed(123)
df <- data.frame(
x = sample(0:1, 10, replace = T),
y = sample(0:1, 10, replace = T),
z = 1:10
)
One appr...
How to merge 2 JSON objects from 2 files using jq?
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Since 1.4 this is now possible with the * operator. When given two objects, it will merge them recursively. For example,
jq -s '.[0] * .[1]' file1 file2
Important: Note the -s (--slurp) flag, which puts files in the same array.
Would get y...
How do I turn off “Automatically Switch to Debug Perspective” mode in eclipse?
...here a way to turn off this mode? I must have clicked it by accident, and now it's getting really annoying.
4 Answers
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How does this JavaScript/jQuery syntax work: (function( window, undefined ) { })(window)?
...ts performance: http://jsperf.com/short-scope. All accesses to window will now have to travel one level less up the scope chain. As with undefined, a local copy again allows for more aggressive minification.
Sidenote:
Though this may not have been the intention of the jQuery developers, passing ...
Create a shortcut on Desktop
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}
[ComImport]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid("000214F9-0000-0000-C000-000000000046")]
internal interface IShellLink
{
void GetPath([Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszFile, int cchMaxPath, out IntPtr pfd, int fFlags);...
What is the difference between HTTP and REST?
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@aefxx thank you, i didnt know that, and never read the full dissertation. i would change the votedown to voteup if it wasnt locked. you have an interesting way of debating, you could just give me a link and be done with that. shish.
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Add property to anonymous type after creation
...t you could do is write new { old.Name1, old.Name2, ID=myId } but I don't know if that's really what you want. Some more details on the situation (including code samples) would be ideal.
Alternatively, you could create a container object which always had an ID and whatever other object contained th...
Under what conditions is a JSESSIONID created?
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Right now im getting many hits on my filter to create session and seems like its only after the second hit (not a second page refresh) its being created, this called my attention " session isn't necessarily created on first request...
How to find difference between two Joda-Time DateTimes in minutes
...ting a scheduled queue and will need to compute the amount of time between now and some future time based on a date from another time zone. I will report back what I find.
– Doo Dah
Apr 21 '16 at 1:29
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Rails ActionMailer - format sender and recipient name/email address
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It looks like the Mail gem now dupes the string passed in, so name.dup doesn't seem necessary anymore. Source reads: @display_name = str.nil? ? nil : str.dup
– philoye
Sep 7 '16 at 4:38
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