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Peak-finding algorithm for Python/SciPy
...ms like a common-enough function to be included in standard libraries. Anyone know of one?
8 Answers
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Python division
... becoming a floating point number.
>>> 1 / 2
0
You should make one of them a float:
>>> float(10 - 20) / (100 - 10)
-0.1111111111111111
or from __future__ import division, which the forces / to adopt Python 3.x's behavior that always returns a float.
>>> from __futu...
How do I perform a Perl substitution on a string while keeping the original?
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The one-liner solution is more useful as a shibboleth than good code; good Perl coders will know it and understand it, but it's much less transparent and readable than the two-line copy-and-modify couplet you're starting with.
I...
How to specify more spaces for the delimiter using cut?
... way, is a neat way to only get the jboss processes and not the grep jboss one (ditto for the awk variant as well).
The grep process will have a literal grep [j]boss in its process command so will not be caught by the grep itself, which is looking for the character class [j] followed by boss.
This...
How can I tell where mongoDB is storing data? (its not in the default /data/db!)
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Well this one SHOULD print the current path precisely for all mongodb version stackoverflow.com/a/52036070/248616
– Nam G VU
Jun 2 '19 at 10:51
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pyplot scatter plot marker size
...h circle (as we move from left to right) it's width is double the previous one so for the area this is an exponential with base 4. Similarly the second example each circle has area double the last one which gives an exponential with base 2.
However it is the second example (where we are scaling are...
How to use random in BATCH script?
...th:
set /a num=%random% %%100
- will produce number between 0~99.
This one:
set /a num=%random% %%100 +1
- will produce number between 1~100.
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Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
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One reason that selecting specific columns is better is that it raises the probability that SQL Server can access the data from indexes rather than querying the table data.
Here's a post I wrote about it: The real reason s...
How well is Unicode supported in C++11?
...put/output library
Regular expressions library
I think all but the first one provide terrible support. I'll get back to it in more detail after a quick detour through your other questions.
Does std::string do what it should?
Yes. According to the C++ standard, this is what std::string and it...
CSS Classes & SubClasses
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I don't really use subclasses myself......can anyone give me a reason where this would be necessary?
– patricksweeney
Feb 18 '09 at 4:12
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