大约有 47,000 项符合查询结果（耗时：0.0457秒） [XML]
Factors in R: more than an annoyance?
...ng, merging and generally manipulating the data, factors are a total pain. More recently, as in the past few years a lot of the functions have improved to handle the factors better. For instance, rbind plays nicely with them. I still find it a total nuisance to have left over empty levels after a su...
Turning off auto indent when pasting text into vim
...
I think set paste is easier, definitely. It is much more semantic than noai or even noautoindent, which is more important when typing "noai" and "paste" take about the same insignificant amount of time when you are proficient enough as a touch typist.
– V...
Is there a more elegant way of adding an item to a Dictionary safely?
...the indexer is clearly the right answer for your specific problem, another more general answer to the problem of adding additional functionality to an existing type would be to define an extension method.
Obviously this isn't a particularly useful example, but something to bear in mind for the next...
What is recursion and when should I use it?
...ion was called
Doing all of these steps takes time, usually a little bit more than it takes to iterate through a loop. However, the real problem is in step #1. When many programs start, they allocate a single chunk of memory for their stack, and when they run out of that memory (often, but not a...
How to split a string into an array of characters in Python?
... This just means list(map(lambda c: c, iter("foobar"))), but more readable and meaningful.
– InQβ
Dec 12 '17 at 1:26
add a comment
|
...
How does `scp` differ from `rsync`?
...
Also, I would guess scp is more likely to be available on a Unix-like system, so you prevent an annoying "command not found" now and then.
– Rafa
May 6 '14 at 21:58
...
How can I break up this long line in Python?
...you go about formatting a long line such as this? I'd like to get it to no more than 80 characters wide:
5 Answers
...
Why shouldn't I use “Hungarian Notation”?
...
|
show 8 more comments
277
votes
...
How to delete from a text file, all lines that contain a specific string?
...
One more note for Mac OS X users: for some reason, the -i flag requires an argument to be passed, even if it's just an empty string, like sed -i '' '/pattern/d' ./infile.
– geerlingguy
Oct 2...
Eventual consistency in plain English
... away thinking it is going to be sunny, even though she asked after one or more of the servers (you and me) had a more up-to-date value.
As opposed to Strict Consistency / ACID compliance:
Your bank balance is $50.
You deposit $100.
Your bank balance, queried from any ATM anywhere, is $150.
Your ...