大约有 900 项符合查询结果（耗时：0.0306秒） [XML]
Selecting/excluding sets of columns in pandas [duplicate]
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It seems that the drop method is slightly faster (~515 µs vs ~680 µs), at least in some tests on a 15611 rows x 5 columns dataframe of which I wanted to drop 3 columns, in python 3.6 and pandas 0.20.3.
– bli
Nov 8 '17 at 17:12
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Couldn't register with the bootstrap Server
... answered May 30 '11 at 21:09
Pål BrattbergPål Brattberg
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Vim: faster way to select blocks of text in visual mode
... answered Sep 13 '11 at 18:55
µBioµBio
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MySQL vs MongoDB 1000 reads
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1000000 872.709µs
SELECT & DISPLAY
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num of rows time taken
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1000000 20.717354746s
UPDAT...
resizes wrong; appears to have unremovable `min-width: min-content`
...oz-document to target Firefox in your CSS, other resources notwithstanding.³
¹ Value may be prefixed. According to one reader, this has no effect in Android 4.1.2 Stock Browser and possibly other old versions; I have not had time to verify this.
² All links to the Gecko source in this answer ...
Is MATLAB OOP slow or am I doing something wrong?
...ng each operation 100000 times
style total µsec per call
nop() function: 0.01578 0.16
nop(), 10x loop unroll: 0.01477 0.15
nop(), 100x loop unroll: 0.01518 0.15
nop() subfunction: 0.01559 0.16
@()[] anon...
Sorting arrays in NumPy by column
... per loop
%timeit table[table[:,9].argsort()]
10000 loops, best of 3: 180 µs per loop
import pandas as pd
df = pd.DataFrame(table)
%timeit df.sort_values(9, ascending=True)
1000 loops, best of 3: 400 µs per loop
So, it looks like indexing with argsort is the quickest method so far...
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Can you use reflection to find the name of the currently executing method?
...swered Sep 4 '08 at 16:52
Lars MæhlumLars Mæhlum
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What are the downsides to using Dependency Injection? [closed]
... answered Mar 9 '10 at 8:34
Håvard SHåvard S
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pyplot axes labels for subplots
...bal plotting parameters include a (visible) grid.
– Næreen
Oct 17 '17 at 17:31
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It seems that t...