大约有 41,100 项符合查询结果(耗时:0.0319秒) [XML]
Process all arguments except the first one (in a bash script)
...
|
edited May 23 '17 at 10:31
Community♦
111 silver badge
answered Jan 29 '12 at 22:32
...
Interactive search/replace regex in Vim?
...
|
edited Feb 3 '19 at 23:15
Laurel
5,3621010 gold badges2323 silver badges4545 bronze badges
...
What can I use for good quality code coverage for C#/.NET? [closed]
...e
edited Jun 14 '19 at 20:35
community wiki
3 r...
Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le
...
131
Use the model.matrix function:
model.matrix( ~ Species - 1, data=iris )
...
Pandas get topmost n records within each group
...
3 Answers
3
Active
...
Remove rows with all or some NAs (missing values) in data.frame
...ul mmus rnor cfam
2 ENSG00000199674 0 2 2 2 2
6 ENSG00000221312 0 1 2 3 2
na.omit is nicer for just removing all NA's. complete.cases allows partial selection by including only certain columns of the dataframe:
> final[complete.cases(final[ , 5:6]),]
...
Map over object preserving keys
...ap the values and preserve the keys.
_.mapObject({ one: 1, two: 2, three: 3 }, function (v) { return v * 3; });
// => { one: 3, two: 6, three: 9 }
DEMO
With Lodash
Lodash provides a function _.mapValues to map the values and preserve the keys.
_.mapValues({ one: 1, two: 2, three: 3 }, fu...
Jasmine.js comparing arrays
...
346
Just did the test and it works with toEqual
please find my test:
http://jsfiddle.net/7q9N7/3...
Convert from ASCII string encoded in Hex to plain ASCII?
...
233
A slightly simpler solution:
>>> "7061756c".decode("hex")
'paul'
...
How to handle exceptions in a list comprehensions?
...rtelli
724k148148 gold badges11261126 silver badges13241324 bronze badges
14
...