大约有 47,000 项符合查询结果(耗时:0.0668秒) [XML]
Remove data.frame row names when using xtable
...ex table generated in R 2.12.2 by xtable 1.5-6 package
% Fri Mar 25 10:06:08 2011
\begin{table}[ht]
\begin{center}
\begin{tabular}{rrrrr}
\hline
am & cyl & mpg & hp & wt \\
\hline
0.00 & 4.00 & 22.90 & 84.67 & 2.94 \\
0.00 & 6.00 & 19.12 & 115.25 &...
How do I Convert DateTime.now to UTC in Ruby?
...
18
Time is stored internally as the number of seconds and microseconds since the epoch, January 1, 1970 00:00 UTC. Date, internally, is represe...
List distinct values in a vector in R
...
answered Oct 13 '11 at 14:08
csgillespiecsgillespie
52.3k1313 gold badges127127 silver badges169169 bronze badges
...
Unable to access JSON property with “-” dash
...
287
jsonObj.profile-id is a subtraction expression (i.e. jsonObj.profile - id).
To access a key th...
Fastest way to list all primes below N
... | 57.4 |
| sieve_wheel_30 | 63.0 |
| rwh_primes2 | 67.8 |
| sieveOfEratosthenes | 147.0 |
| ambi_sieve_plain | 152.0 |
| sundaram3 | 194.0 |
+---------------------+-------+
Of the plain Python methods tested, without psyco, for n=1000000,
rwh_primes2 was the ...
Can Vim highlight matching HTML tags like Notepad++?
...
Greg SextonGreg Sexton
8,67966 gold badges2929 silver badges3434 bronze badges
...
What is Unicode, UTF-8, UTF-16?
What's the basis for Unicode and why the need for UTF-8 or UTF-16?
I have researched this on Google and searched here as well but it's not clear to me.
...
Get current stack trace in Ruby without raising an exception
...
185
You can use Kernel#caller:
# /tmp/caller.rb
def foo
puts caller # Kernel#caller returns an...
Which is better: … or …
... use and should be used instead.
However, IE up to and including version 8 doesn't execute script inside a <script> element with a type attribute of either application/javascript or application/ecmascript, so if you need to support old IE, you're stuck with text/javascript.
...
UITableView with fixed section headers
...
bachonkbachonk
3,68411 gold badge1111 silver badges1313 bronze badges
...
