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Summarizing multiple columns with dplyr? [duplicate]
...x. I have a data frame with different variables and one grouping variable. Now I want to calculate the mean for each column within each group, using dplyr in R.
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Checkout multiple git repos into same Jenkins workspace
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Previously the Multiple SCM plugin could help with this issue but it is now deprecated. From the Multiple SCM plugin page: "Users should migrate to https://wiki.jenkins-ci.org/display/JENKINS/Pipeline+Plugin . Pipeline offers a better way of checking out of multiple SCMs, and is supported by the...
'Must Override a Superclass Method' Errors after importing a project into Eclipse
...-> Preferences menu item, then select Java and Compiler in the dialog.
Now it still may show compiler compliance level at 1.6, yet you still see this problem. So now select the link "Configure Project Specific Settings..." and in there you'll see the project is set to 1.5, now change this to 1....
How do you enable “Enable .NET Framework source stepping”?
...ogram Manager, Base Class Libraries, .NET Framework) that the issue should now be resolved. The Connect entry is marked as Resolved (Fixed) :
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What is the difference between angular-route and angular-ui-router?
...nt to some to point out difference in filesize in this answer. As of right now ngRoute: 35.9kB / 4.4kB / 2.5kB and ui-router: 162.9kB / 30.4kB / 11.6kB (unminified / minified / gzipped).
– Alex Ross
Jul 21 '15 at 5:04
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How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]
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It's 2014 now, so we need semicolons again.
– tacone
Jan 8 '14 at 17:35
56
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Is using Random and OrderBy a good shuffle algorithm?
...dex];
elements[swapIndex] = elements[i];
}
}
This will now only do as much work as it needs to.
Note that in both cases, you need to be careful about the instance of Random you use as:
Creating two instances of Random at roughly the same time will yield the same sequence of ra...
How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]
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Valgrind also now works on OS X, so linux is not your only option.
– Michael Anderson
Oct 12 '10 at 3:01
1
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How to parse freeform street/postal address out of text, and into components
..., though each country enforces or defines ownership a little differently. Knowing this is important, since it usually forbids reverse-engineering the address database. You have to be careful how to acquire, store, and use the data.
Google Maps is a common go-to for quick address fixes, but the TOS i...
How to get list of all installed packages along with version in composer?
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The '-i' option is now deprecated. composer show lists installed package by default.
– herve
Jul 21 '16 at 15:20
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