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filter for complete cases in data.frame using dplyr (case-wise deletion)
...## ..- attr(*, "names")= chr "3" "4"
ADDED Have updated to reflect latest version of dplyr and comments.
ADDED Have updated to reflect latest version of tidyr and comments.
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How do you debug PHP scripts? [closed]
... community wiki
3 revs, 3 users 92%Julio César
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Easy way to see saved NSUserDefaults?
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Interesting... It seems that if you're doing OCMock / SenTestingKit unit testing with NSUserDefaults, then the NSUserDefaults aren't persisted to a .plist file but rather managed in memory: stackoverflow.com/questions/6193597/…
– ma11hew28
M...
How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...$n command line option after all.
More recently, Linus added in commit e6c587c (for Git 2.11, Q4 2016):
(as mentioned in Matthieu Moy's answer)
In fairly early days we somehow decided to abbreviate object names down to 7-hexdigits, but as projects grow, it is becoming more and more likely to...
Swipe to Delete and the “More” button (like in Mail app on iOS 7)
...compatible with all the different ways to create a UITableViewCell and its tested on iOS 5, iOS 6, iOS 7 and iOS 8.
Here a sample of some transitions:
Border transition:
Clip transition
3D Transition:
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How to detect if URL has changed after hash in JavaScript
...e in Mozilla Docs
Currently (Jan 2017) there is support for popstate from 92% of browsers worldwide.
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How to find the statistical mode?
... the pun/ambiguity) "character" not "numeric". And, of course, the need to test for multi-modal distribution would typically require the storing of the sorted table to avoid crunching it anew.
– mjv
Mar 30 '10 at 19:02
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How to “git show” a merge commit with combined diff output even when every changed file agrees with
... <email@email>
Date: Tue Feb 22 00:27:17 2011 +0100
Merge branch 'testing' into master
notice the line:
Merge: fc17405 ee2de56
take those two commit ids and reverse them. so in order get the diff that you want, you would do:
git diff ee2de56..fc17405
to show just the names of the ch...
When are C++ macros beneficial? [closed]
... community wiki
2 revs, 2 users 92%David Thornley
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Checking if a string can be converted to float in Python
...rn False
Don't get bit by the goblins hiding in the float boat! DO UNIT TESTING!
What is, and is not a float may surprise you:
Command to parse Is it a float? Comment
-------------------------------------- --------------- ------------
print(isfloat("")) ...