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How to convert list of tuples to multiple lists?
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166
The built-in function zip() will almost do what you want:
>>> zip(*[(1, 2), (3, 4), ...
How can I pass arguments to a batch file?
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17 Answers
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filter for complete cases in data.frame using dplyr (case-wise deletion)
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187
Try this:
df %>% na.omit
or this:
df %>% filter(complete.cases(.))
or this:
libra...
pandas: multiple conditions while indexing data frame - unexpected behavior
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221
As you can see, the AND operator drops every row in which at least one
value equals -1. On ...
Get column index from column name in python pandas
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Sure, you can use .get_loc():
In [45]: df = DataFrame({"pear": [1,2,3], "apple": [2,3,4], "orange": [3,4,5]})
In [46]: df.columns
Out[46]: Index([apple, orange, pear], dtype=object)
In [47]: df.columns.get_loc("pear")
Out[47]: 2
although to be honest I don't often need this myself. U...
How to toggle a value in Python
What is the most efficient way to toggle between 0 and 1 ?
17 Answers
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adito-gateway -华为云免费SSL VPN解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...免费的SSL VPN adito-gateway ssl vpn之华为云软件SSL VPN解决方案1、yum install ant2.下载adito-0.9.1-bin并拷贝到 mnt目录下3....免费的SSL VPN adito-gateway ssl vpn之华为云软件SSL VPN解决方案
1、 yum install ant
2. 下载adito-0.9.1-bin 并拷贝到 /mnt目...
MySql: Tinyint (2) vs tinyint(1) - what is the difference?
I knew boolean in mysql as tinyint (1) .
4 Answers
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Get all unique values in a JavaScript array (remove duplicates)
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Find row where values for column is maximal in a pandas DataFrame
...,columns=['A','B','C'])
>>> df
A B C
0 1.232853 -1.979459 -0.573626
1 0.140767 0.394940 1.068890
2 0.742023 1.343977 -0.579745
3 2.125299 -0.649328 -0.211692
4 -0.187253 1.908618 -1.862934
>>> df['A'].argmax()
3
>>> df['B'].argmax()
4
>...