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Plot a bar using matplotlib using a dictionary
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Python dicts cannot be sorted. Consequently, the order is always arbitrary. However, the keys and values are always aligned with the above code.
– David Zwicker
Mar 18 '15 at 18:03
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How to draw a rounded Rectangle on HTML Canvas?
...nt.getElementById("rounded-rect").getContext("2d");
// Draw using default border radius,
// stroke it but no fill (function's default values)
roundRect(ctx, 5, 5, 50, 50);
// To change the color on the rectangle, just manipulate the context
ctx.strokeStyle = "rgb(255, 0, 0)";
ctx.fillStyle = "rgba(...
CSS for grabbing cursors (drag & drop)
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CSS3 grab and grabbing are now allowed values for cursor.
In order to provide several fallbacks for cross-browser compatibility3 including custom cursor files, a complete solution would look like this:
.draggable {
cursor: move; /* fallback: no `url()` support or images disabled *...
Studies on optimal code width?
...rson shouldn't have to turn their head or rotate their eyes all the way in order to read from one end of a line to the other. So much rapid eye or head rotation would probably cause vertigo if done all day.
– maurice
Feb 5 '18 at 18:46
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Is there a library function for Root mean square error (RMSE) in python?
...a best guess could be preferred if there are lots of missing values.
In order to guarantee relative correctness of the RMSE output, you must eliminate all nulls/infinites from the input.
RMSE has zero tolerance for outlier data points which don't belong
Root mean squared error squares relies on...
Understanding the ngRepeat 'track by' expression
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a short summary:
track by is used in order to link your data with the DOM generation (and mainly re-generation) made by ng-repeat.
when you add track by you basically tell angular to generate a single DOM element per data object in the given collection
this co...
Why em instead of px?
...s like in and pt. For Eg. Just extending your 'proof' if I draw a line of 1_in_ will it measure 1 inch physically?
– Saumitra R. Bhave
Jan 26 '15 at 16:19
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Which Eclipse files belong under version control?
...h Configuration preference panel: It is common to soft-delete a project in order to import it back again - to force a reinitialization of the eclipse metadata. But this option, if checked, will remove your detailed launch parameters!)
project-dir/.project
project-dir/.classpath
project-dir/.setting...
jQuery .hasClass() vs .is()
...ay 'not a huge difference, my point is that you need to do 10000 cycles in order to see 0.8s of a difference. I'd be surprised to see a web application such that switching from is to hasClass would see a significant improvement in over all performance. However, I grant that this is a 35% improvement...
Generating an MD5 checksum of a file
...y and feed them to the md5 method:
import hashlib
def md5(fname):
hash_md5 = hashlib.md5()
with open(fname, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
hash_md5.update(chunk)
return hash_md5.hexdigest()
Note: hash_md5.hexdigest() will return the hex s...