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How to filter rows in pandas by regex
...ted Jun 4 '18 at 12:10
Jean-François Corbett
33.6k2525 gold badges124124 silver badges172172 bronze badges
answered Feb 20 '18 at 11:35
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Smallest data URI image possible for a transparent image
.../>
Standalone svg file would look like (62 bytes):
<?xml version="1.0"?><svg xmlns="http://www.w3.org/2000/svg"/>
See also:
Optimizing SVGs in data URIs
Url encoder for SVG (GitHub) / SVG CSS URI — Optimized replacer
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Difference between Pragma and Cache-Control headers?
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Pragma is the HTTP/1.0 implementation and cache-control is the HTTP/1.1 implementation of the same concept. They both are meant to prevent the client from caching the response. Older clients may not support HTTP/1.1 which is why that header is ...
Int division: Why is the result of 1/3 == 0?
...)
Also, note that if both operands (numbers) are given as floats; 3.0 and 1.0, or even just the first, then floating-point arithmetic is used, giving you 0.333....
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how to draw directed graphs using networkx in python?
...'),
('B', 'H'), ('B', 'G'), ('B', 'F'), ('C', 'G')])
val_map = {'A': 1.0,
'D': 0.5714285714285714,
'H': 0.0}
values = [val_map.get(node, 0.25) for node in G.nodes()]
# Specify the edges you want here
red_edges = [('A', 'C'), ('E', 'C')]
edge_colours = ['black' if not ed...
What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
...he format: major.minor. This would result in:
[assembly: AssemblyVersion("1.0")]
If you're following SemVer strictly then this means you only update when the major changes, so 1.0, 2.0, 3.0, etc.
AssemblyFileVersion
Used for deployment. You can increase this number for every deployment. It is u...
Python executable not finding libpython shared library
...ce /usr/local/lib with the folder where you have installed libpython2.7.so.1.0 if it is not in /usr/local/lib.
If this works and you want to make the changes permanent, you have two options:
Add export LD_LIBRARY_PATH=/usr/local/lib to your .profile in your home directory (this works only if you ...
How to delete a remote tag?
...n master:master
Tags work the same way:
git push origin refs/tags/release-1.0:refs/tags/release-1.0
Which can also be shortened to:
git push origin release-1.0:release-1.0
By omitting the source ref (the part before the colon), you push 'nothing' to the destination, deleting the ref on the remote...
How can I change image tintColor in iOS and WatchKit
...slateCTM(context, 0, self.size.height);
CGContextScaleCTM(context, 1.0, -1.0);
CGContextSetBlendMode(context, kCGBlendModeNormal);
CGRect rect = CGRectMake(0, 0, self.size.width, self.size.height);
CGContextClipToMask(context, rect, self.CGImage);
[color1 setF...
What is the difference between quiet NaN and signaling NaN?
...2");
float div_0_0 = 0.0f / 0.0f;
float sqrt_negative = std::sqrt(-1.0f);
// Print their bytes.
std::cout << "qnan "; print_float(qnan);
std::cout << "snan "; print_float(snan);
std::cout << " inf "; print_float(inf);
std::cout << "-inf "; print_f...