大约有 49,000 项符合查询结果（耗时：0.0752秒） [XML]
Apply a function to every row of a matrix or a data frame
..., byrow=TRUE)
R> M
[,1] [,2]
[1,] 1 2
[2,] 3 4
[3,] 5 6
R> apply(M, 1, function(x) 2*x[1]+x[2])
[1] 4 10 16
R>
This takes a matrix and applies a (silly) function to each row. You pass extra arguments to the function as fourth, fifth, ... arguments to apply().
...
Add a “hook” to all AJAX requests on a page
...
answered Mar 5 '11 at 9:47
meouwmeouw
39.6k1010 gold badges4848 silver badges6767 bronze badges
...
How can I generate Javadoc comments in Eclipse? [duplicate]
...
5 Answers
5
Active
...
How to increase IDE memory limit in IntelliJ IDEA on Mac?
...
583
Current version: Help | Change Memory Settings:
Since IntelliJ IDEA 15.0.4 you can also use...
Can IntelliJ IDEA encapsulate all of the functionality of WebStorm and PHPStorm through plugins? [cl
...
5 Answers
5
Active
...
How to write lists inside a markdown table?
...
|
edited Apr 3 '15 at 8:29
marc_s
650k146146 gold badges12251225 silver badges13551355 bronze badges
...
Correct approach to global logging in Golang
What's the pattern for application logging in Go? If I've got, say, 5 goroutines I need to log from, should I...
7 Answers...
How do I create some kind of table of content in GitHub wiki?
...
|
edited Sep 8 '15 at 13:00
answered Aug 15 '13 at 0:30
...
Working copy XXX locked and cleanup failed in SVN
...
517
One approach would be to:
Copy edited items to another location.
Delete the folder containin...
How to make shallow git submodules?
...
135
New in the upcoming git1.8.4 (July 2013):
"git submodule update" can optionally clone the s...