大约有 47,000 项符合查询结果（耗时：0.0702秒） [XML]
Numpy array assignment with copy
...
answered Oct 30 '13 at 7:59
BlckknghtBlckknght
80.1k99 gold badges9393 silver badges141141 bronze badges
...
How to plot multiple functions on the same figure, in Matplotlib?
...m numpy import *
import math
import matplotlib.pyplot as plt
t = linspace(0, 2*math.pi, 400)
a = sin(t)
b = cos(t)
c = a + b
plt.plot(t, a, 'r') # plotting t, a separately
plt.plot(t, b, 'b') # plotting t, b separately
plt.plot(t, c, 'g') # plotting t, c separately
plt.show()
...
Conditional Replace Pandas
...
.ix indexer works okay for pandas version prior to 0.20.0, but since pandas 0.20.0, the .ix indexer is deprecated, so you should avoid using it. Instead, you can use .loc or iloc indexers. You can solve this problem by:
mask = df.my_channel > 20000
column_name = 'my_chann...
Cocoa: What's the difference between the frame and the bounds?
...
908
The bounds of an UIView is the rectangle, expressed as a location (x,y) and size (width,height)...
What is Hindley-Milner?
...tion in ML, you can see the type parameter thus:
fun 'a length [] = 0
| 'a length (x::xs) = 1 + length xs
If a term has a Hindley-Milner type, then the principal type can be inferred without requiring any type declarations or other annotations by the programmer. (This is a mixed blessing...
iOS: Compare two dates
...
210
According to Apple documentation of NSDate compare:
Returns an NSComparisonResult value that...
When to use std::size_t?
...
answered Dec 23 '09 at 9:09
CB BaileyCB Bailey
610k9090 gold badges596596 silver badges628628 bronze badges
...
Remove leading and trailing spaces?
... |
edited Dec 28 '16 at 5:03
Greg Schmit
3,39822 gold badges1616 silver badges3232 bronze badges
answere...
How do I query using fields inside the new PostgreSQL JSON datatype?
...
180
Postgres 9.2
I quote Andrew Dunstan on the pgsql-hackers list:
At some stage there will pos...
How to center a “position: absolute” element
...may use:
position: absolute;
margin-left: auto;
margin-right: auto;
left: 0;
right: 0;
text-align: center;
share
|
improve this answer
|
follow
|
...