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`levels
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The answers here are good, but they are missing an important point. Let m>me m> try and describe it.
R is a functional language and does not like to mutate its objects. But it does allow assignm>me m>nt statem>me m>nts, using replacem>me m>nt functions:
levels(x) <- y
is equivalent to
x <- `levels<-`(x...
When do I use fabs and when is it sufficient to use std::abs?
I assum>me m> that abs and fabs are behaving different when using math.h . But when I use just cmath and std::abs , do I have to use std::fabs or fabs ? Or isn't this defined?
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Multiple inputs with sam>me m> nam>me m> through POST in php
Is it possible to get multiple inputs of the sam>me m> nam>me m> to post and then access them from PHP? The idea is this: I have a form that allows the entry of an indefinite number of physical addresses along with other information. If I simply gave each of those fields the sam>me m> nam>me m> across several entries...
Automatic prune with Git fetch or pull
If som>me m>one deleted a remote branch because the work is over and I don't know, I won't do a git fetch --prune and eventually I will push back the deleted branch.
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How to create default value for function argum>me m>nt in Clojure
I com>me m> with this:
5 Answers
5
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Hidden features of Perl?
What are som>me m> really useful but esoteric language features in Perl that you've actually been able to employ to do useful work?
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How can I use if/else in a dictionary comprehension?
Does there exist a way in Python 2.7+ to make som>me m>thing like the following?
4 Answers
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How to configure an existing git repo to be shared by a UNIX group
...ing git repo (a bare one) which has up to this point only been writable by m>me m>. I want to open it up to som>me m> UNIX user group, foo, so that all m>me m>mbers of foo can push to it. I'm aware that I can easily set up a new git repo with:
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Difference between git checkout --track origin/branch and git checkout -b branch origin/branch
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The two commands have the sam>me m> effect (thanks to Robert Siem>me m>r’s answer for pointing it out).
The practical difference com>me m>s when using a local branch nam>me m>d differently:
git checkout -b mybranch origin/abranch will create mybranch and track origi...
What is the most efficient/elegant way to parse a flat table into a tree?
Assum>me m> you have a flat table that stores an ordered tree hierarchy:
14 Answers
14
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