大约有 48,000 项符合查询结果（耗时：0.0756秒） [XML]
How to pip install a package with min and max version range?
...
321
You can do:
$ pip install "package>=0.2,<0.3"
And pip will look for the best match, ass...
numpy: most efficient frequency counts for unique values in an array
...
16 Answers
16
Active
...
Obfuscated C Code Contest 2006. Please explain sykes2.c
...
1824
Let's de-obfuscate it.
Indenting:
main(_) {
_^448 && main(-~_);
putchar(--_...
how do I insert a column at a specific column index in pandas?
... the beginning
df.insert(loc, column, value)
df = pd.DataFrame({'B': [1, 2, 3], 'C': [4, 5, 6]})
df
Out:
B C
0 1 4
1 2 5
2 3 6
idx = 0
new_col = [7, 8, 9] # can be a list, a Series, an array or a scalar
df.insert(loc=idx, column='A', value=new_col)
df
Out:
A B C
0 7 1 ...
How to get row from R data.frame
...
130
x[r,]
where r is the row you're interested in. Try this, for example:
#Add your data
x <...
How to deal with SettingWithCopyWarning in Pandas?
I just upgraded my Pandas from 0.11 to 0.13.0rc1. Now, the application is popping out many new warnings. One of them like this:
...
How can I get the intersection, union, and subset of arrays in Ruby?
...
155
Utilizing the fact that you can do set operations on arrays by doing &(intersection), -(di...
How to add texture to fill colors in ggplot2
...
|
edited Dec 27 '17 at 15:36
Claus Wilke
12.6k44 gold badges3636 silver badges7070 bronze badges
...
`elif` in list comprehension conditionals
...essions were designed exactly for this sort of use-case:
>>> l = [1, 2, 3, 4, 5]
>>> ['yes' if v == 1 else 'no' if v == 2 else 'idle' for v in l]
['yes', 'no', 'idle', 'idle', 'idle']
Hope this helps :-)
s...
How do I calculate percentiles with python/numpy?
...
11 Answers
11
Active
...