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Extracting specific columns in numpy array

This is an easy question but say I have an MxN matrix. All I want to do is extract specific columns and store them in another numpy array but I get invalid syntax errors. Here is the code: ...
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Is either GET or POST more secure than the other?

...paring an HTTP GET to an HTTP POST, what are the differences from a security perspective? Is one of the choices inherently more secure than the other? If so, why? ...
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How can I check if a view is visible or not in Android? [duplicate]

I set visibility to invisible like this on Android: 4 Answers 4 ...
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How to get UILabel to respond to tap?

...ch faster than UITextField and I plan to use UILabel most of the time for my data display app. 11 Answers ...
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Get Value of a Edit Text field

...Text input fields. On the click of a Button I want to capture the content typed into that input field. 12 Answers ...
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How to develop a soft keyboard for Android? [closed]

I would like to play around with some ideas and develop a soft keyboard for Android to replace the default one. 4 Answers ...
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How do I remove/delete a virtualenv?

... That's it! There is no command for deleting your virtual environment. Simply deactivate it and rid your application of its artifacts by recursively removing it. Note that this is the same regardless of what kind of virtual environment you are using. virtualenv, venv, ...
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top命令使用详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...交互式命令或者在个人定制文件中进行设定. top [-] [d delay] [p pid] [q] [c] [C] [S] [s] [i] [n iter] [b] p 仅监视进程给定的进程ID d 指定每两次屏幕信息刷新之间的时间间隔。当然用户可以使用s交互命令来改变之。 q 该选项将使top没有...
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How to subtract 30 days from the current datetime in mysql?

How do I subtract 30 days from the current datetime in mysql? 8 Answers 8 ...
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How to get indices of a sorted array in Python

... If you are using numpy, you have the argsort() function available: >>> import numpy >>> numpy.argsort(myList) array([0, 1, 2, 4, 3]) http://docs.scipy.org/doc/numpy/reference/generated/numpy.argsort.html Th...