大约有 7,000 项符合查询结果（耗时：0.0274秒） [XML]
Change column type from string to float in Pandas
...g to float values
0 8.0
1 6.0
2 7.5
3 3.0
4 0.9
dtype: float64
As you can see, a new Series is returned. Remember to assign this output to a variable or column name to continue using it:
# convert Series
my_series = pd.to_numeric(my_series)
# convert column "a" of a DataFrame
df["a"...
Server is already running in Rails
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84
lsof -wni tcp:3000
Then you should see the ruby process and you can run
kill -9 processid
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Removing pip's cache?
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84
pip can install a package ignoring the cache, like this
pip --no-cache-dir install scipy
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C++ equivalent of StringBuffer/StringBuilder?
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96
The std::string.append function isn't a good option because it doesn't accept many forms of dat...
NumPy or Pandas: Keeping array type as integer while having a NaN value
...ferred way to keep the data type of a numpy array fixed as int (or int64 or whatever), while still having an element inside listed as numpy.NaN ?
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Is it possible to determine whether ViewController is presented as Modal?
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96
Since modalViewController has been deprecated in iOS 6, here's a version that works for iOS 5+ ...
Text inset for UITextField?
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Bo Persson
84k1919 gold badges134134 silver badges196196 bronze badges
answered Nov 22 '12 at 15:21
chuthan20chu...
start MySQL server from command line on Mac OS Lion
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84
As this helpful article states:
On OS X to start/stop MySQL from the command line:
sudo /usr/l...
Vim for Windows - What do I type to save and exit from a file?
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HTML link is broken.
– Naxos84
Feb 5 '18 at 13:30
add a comment
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Load RSA public key from file
...hods with this answer for getting bytes from files: stackoverflow.com/a/21264593/3680466
– cloudsurfin
Mar 15 '16 at 0:21
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