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initialize a numpy array
...by creating a regular list, then append my stuff into it, and finally transform the list to a numpy array as follows :
import numpy as np
big_array = [] # empty regular list
for i in range(5):
arr = i*np.ones((2,4)) # for instance
big_array.append(arr)
big_np_array = np.array(big_array) #...
How can I declare and define multiple variables in one line using C++?
...ly I prefer the following which has been pointed out.
It's a more readable form in my view.
int column = 0, row = 0, index = 0;
or
int column = 0;
int row = 0;
int index = 0;
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Who is listening on a given TCP port on Mac OS X?
...cess (PID) is listening on the specified TCP port. How do I get the same information on Mac OS X?
17 Answers
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urlencode vs rawurlencode?
...he one exception is legacy systems which expect the query string to follow form-encoding style of spaces encoded as + instead of %20 (in which case you need urlencode).
rawurlencode follows RFC 1738 prior to PHP 5.3.0 and RFC 3986 afterwards (see http://us2.php.net/manual/en/function.rawurlencode.p...
How can I list all tags in my Git repository by the date they were created?
...ith annotated and lightweight tags:
git for-each-ref --sort=creatordate --format '%(refname) %(creatordate)' refs/tags
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How to use getJSON, sending data with post method?
...ld be anything you want, although if are sending the contents of a an html form, you can use the serialize method to create the data for the POST from your form.
var dataToBeSent = $("form").serialize();
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Show percent % instead of counts in charts of categorical variables
...t count vs percentage histogram' so hopefully this helps distill all the information currently housed in comments on the accepted answer.
Remark: If hp is not set as a factor, ggplot returns:
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Load image from resources area of project in C#
...
Are you using Windows Forms? If you've added the image using the Properties/Resources UI, you get access to the image from generated code, so you can simply do this:
var bmp = new Bitmap(WindowsFormsApplication1.Properties.Resources.myimage);
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What does “default” mean after a class' function declaration?
... respective constructor or assignment operator, i.e. the one which just performs the copy or move action for each member. This is useful because the move constructor isn't always generated by default (e.g. if you have a custom destructor), unlike the copy constructor (and likewise for assignment), b...
Can't escape the backslash with regex?
...kslash.
Depending on the language, you might be able to use a different form of quoting that doesn't parse escape sequences to avoid having to use as many - for instance, in Python:
re.compile(r'\\')
The r in front of the quotes makes it a raw string which doesn't parse backslash escapes.
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