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What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
...ple branches in single repository) is still second-class citizen, and in strange and complicated way it implements tags. Also the way it deals with file renames was suboptimal (but this migth have changed). Mercurial doesn't support octopus merges (with more than two parents).
From what I have hear...
How do I profile memory usage in Python?
...eapq.py:569: 0.5 KiB
result = [(key(elem), i, elem) for i, elem in zip(range(0, -n, -1), it)]
10 other: 2.2 KiB
Total allocated size: 4.0 KiB
Now here's a version inspired by another answer that starts a second thread to monitor memory usage.
from collections import Counter
import linecache
i...
Bash tool to get nth line from a file
...n wondering if there's a Bash tool that specifically extracts a line (or a range of lines) from a file.
19 Answers
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How to read a .xlsx file using the pandas Library in iPython?
...g then indicates comma separated list of column names and
column ranges (e.g. "A:E" or "A,C,E:F")
squeeze : boolean, default False
If the parsed data only contains one column then return a Series
na_values : scalar, str, list-like, or dict, default None
Additional s...
Rolling median algorithm in C
...queries but is more flexible. Best of all the "N" is the size of your data range. So if your rolling median has a window of a million items, but your data varies from 1..65536, then only 16 operations are required per movement of the rolling window of 1 million!!
The c++ code is similar to what Den...
How can I quantify difference between two images?
...n σ for every pixel of the background
compare current pixel values to the range of (μ-2σ,μ+2σ) or (μ-σ,μ+σ)
More advanced versions make take into account time series for every pixel and handle non-static scenes (like moving trees or grass).
The idea of optical flow is to take two or more...
Explain the use of a bit vector for determining if all characters are unique
...form) so this program can only work correctly for a character set within a range of 32 characters. That's the reason, this program subtracts 'a' from each character in order to make this program run for only lower case characters. However if you mix lower and upper case characters then it would not ...
What's with 181783497276652981 and 8682522807148012 in Random (Java 7)?
...tiple RNGs in a row. If their creation times fall in the same millisecond range, they will give completely identical sequences. (same seed => same sequence)
The second one is not thread safe. Multiple threads can get identical RNGs when initializing at the same time. Additionally, seeds of subs...
initializer_list and move semantics
...ernatives based on arrays and/or variadic functions, thus constraining the range of cases where the latter are usable. By my understanding, this is precisely one of the main rationales for having initializer_list, so it seemed worth mentioning.
– underscore_d
J...
Why Choose Struct Over Class?
...h property and a height property, both of type Double.
A way to refer to ranges within a series, perhaps encapsulating a start property and a length property, both of type Int.
A point in a 3D coordinate system, perhaps encapsulating x, y and z properties, each of type Double.
In all oth...