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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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What is the best way to programmatically detect porn images? [closed]
Akismet does an amazing job at detecting spam comments. But comments are not the only form of spam these days. What if I wanted something like akismet to automatically detect porn images on a social networking site which allows users to upload their pics, avatars, etc?
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How to apply a function to two columns of Pandas dataframe
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Added an example to my answer, hope this does what you're looking for. If not, please provide a more specific example function since sum is solved successfully by any of the methods suggested so far.
– Aman
Nov 12 '12 at 14:51
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Can you “ignore” a file in Perforce?
...en working on while disconnected from the P4 depot. It launches another window that performs a 'Folder Diff'.
10 Answers
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rbenv not changing ruby version
...ated my .bash_profile and reset PATH.
Finally, make sure your $HOME folder doesn't have a .ruby-version file that you may have created by accident if you were to have done $ rbenv local <ruby-version> in your $HOME folder. Doing $ rbenv global <ruby-version> modifies the $HOME/.rbenv/ver...
What is the difference between a 'closure' and a 'lambda'?
... anotherfunc(h):
return func()
This will cause an error, because func does not close over the environment in anotherfunc - h is undefined. func only closes over the global environment. This will work:
def anotherfunc(h):
def func(): return h
return func()
Because here, func is define...
check if a std::vector contains a certain object? [duplicate]
...egin(), v.end(), x) != v.end()) {
/* v contains x */
} else {
/* v does not contain x */
}
Checking if v contains elements (is non-empty):
if(!v.empty()){
/* v is non-empty */
} else {
/* v is empty */
}
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Check if an image is loaded (no errors) with jQuery
...mage thumbnails contained in a unordered list. When the image is loaded it does one thing, when an error occurs it does something else. I'm using jQuery load() and error() methods as events. After these events I check the image DOM element for the .complete to make sure the image wasn't already...
How to parse JSON in Scala using standard Scala classes?
I am using the build in JSON class in Scala 2.8 to parse JSON code. I don't want to use the Liftweb one or any other due to minimizing dependencies.
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How to “add existing frameworks” in Xcode 4?
I can't find the good old "Add existing frameworks" option. How do I do this?
10 Answers
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