大约有 47,000 项符合查询结果（耗时：0.0416秒） [XML]
Standard deviation of a list
I want to find mean and standard deviation of 1st, 2nd,... digits of several (Z) lists. For example, I have
8 Answers
...
Pandas get topmost n records within each group
...
195
Did you try df.groupby('id').head(2)
Ouput generated:
>>> df.groupby('id').head(2)...
Python matplotlib multiple bars
...
112
import matplotlib.pyplot as plt
from matplotlib.dates import date2num
import datetime
x = [
...
Can I add jars to maven 2 build classpath without installing them?
... |
edited Aug 9 at 15:39
Spooky
2,79977 gold badges2222 silver badges3939 bronze badges
answered ...
Nested JSON objects - do I have to use arrays for everything?
... JSON like this:
{
"stuff": {
"onetype": [
{"id":1,"name":"John Doe"},
{"id":2,"name":"Don Joeh"}
],
"othertype": {"id":2,"company":"ACME"}
},
"otherstuff": {
"thing": [[1,42],[2,2]]
}
}
You can use it like this:
obj.stuf...
How do android screen coordinates work?
...pSize.y;
EDIT:- ** **for devices supporting android api level older than 13. Can use below code.
Display mdisp = getWindowManager().getDefaultDisplay();
int maxX= mdisp.getWidth();
int maxY= mdisp.getHeight();
(x,y) :-
1) (0,0) is top left corner.
2) (maxX,0) is top right corner
...
How to properly assert that an exception gets raised in pytest?
...
11 Answers
11
Active
...
In-memory size of a Python structure
...
146
The recommendation from an earlier question on this was to use sys.getsizeof(), quoting:
>...