大约有 41,000 项符合查询结果（耗时：0.0489秒） [XML]
Create Pandas DataFrame from a string
...StringIO
import pandas as pd
TESTDATA = StringIO("""col1;col2;col3
1;4.4;99
2;4.5;200
3;4.7;65
4;3.2;140
""")
df = pd.read_csv(TESTDATA, sep=";")
share
|
improve this answer
...
How to split a sequence into two pieces by predicate?
...
By using partition method:
scala> List(1,2,3,4).partition(x => x % 2 == 0)
res0: (List[Int], List[Int]) = (List(2, 4),List(1, 3))
share
|
improve this answer
...
Is “ ” a replacement of “ ”?
...
zb226
7,01144 gold badges3535 silver badges6262 bronze badges
answered Jul 18 '10 at 4:32
Ignacio Vazquez-Abrams...
Filtering a list based on a list of booleans
...
>>> from itertools import compress
>>> list_a = [1, 2, 4, 6]
>>> fil = [True, False, True, False]
>>> list(compress(list_a, fil))
[1, 4]
Timing comparisons(py3.x):
>>> list_a = [1, 2, 4, 6]
>>> fil = [True, False, True, False]
>>> %...
Difference between a Factory, Provider and a Service?
...
174
Factory: Assembles classes, either by composing a bunch of bits together, or choosing type based...
Regex to match a digit two or four times
...
145
There's no specific syntax for that, but there are lots of ways to do it:
(?:\d{4}|\d{2}) &...
.htaccess mod_rewrite - how to exclude directory from rewrite rule
...
answered Dec 4 '09 at 17:51
GumboGumbo
572k100100 gold badges725725 silver badges804804 bronze badges
...
how to restart only certain processes using supervisorctl?
...d, named process1, process2, ..., process8. If I want to restart process{1-4}, how can I do that with supervisorctl?
2 Answ...
Reading header data in Ruby on Rails
...
149
request.headers["Content-Type"] # => "text/plain"
replace "Content-Type" with the name of ...