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How to print last two columns using awk
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awk '{print $(NF-1),"\t",$NF}' file
this assumes that you have at least 2 fields.
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How do I check which version of NumPy I'm using?
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392
import numpy
numpy.version.version
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Python data structure sort list alphabetically
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241
[] denotes a list, () denotes a tuple and {} denotes a dictionary. You should take a look at t...
Apply pandas function to column to create multiple new columns?
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Building off of user1827356 's answer, you can do the assignment in one pass using df.merge:
df.merge(df.textcol.apply(lambda s: pd.Series({'feature1':s+1, 'feature2':s-1})),
left_index=True, right_index=True)
textcol feature1 feature...
Jackson serialization: ignore empty values (or null)
I'm currently using jackson 2.1.4 and I'm having some trouble ignoring fields when I'm converting an object to a JSON string.
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Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...x下的一个强大编程工具。
目录：
1. awk简介
2. awk命令格式和选项
2.1. awk的语法有两种形式
2.2. 命令选项
3. 模式和操作
3.1. 模式
3.2. 操作
4. awk的环境变量
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What are the main disadvantages of Java Server Faces 2.0?
Yesterday I saw a presentation on Java Server Faces 2.0 which looked truly impressive, even though I am currently a happy ASP.NET MVC / jQuery developer. What I liked most about JSF was the huge amount of AJAX-Enabled UI components which seem to make development much faster than with ASP.NET MVC, es...
Check if at least two out of three booleans are true
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Is there a better way to iterate over two lists, getting one element from each list for each iterati
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This is as pythonic as you can get:
for lat, long in zip(Latitudes, Longitudes):
print la...