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SyntaxError: Use of const in strict mode
...st stable NodeJS version
sudo n stable
Update nodejs instructions taken from, https://stackoverflow.com/a/19584407/698072
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In C#, why is String a reference type that behaves like a value type?
... to this situation where we have a type with value sematics not inheriting from System.ValueType. Thanks Ben.)
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Compare double to zero using epsilon
...ble can store exponents less than the exponent of epsilon.
You can't tell from this code alone whether it makes sense or not to use epsilon specifically as the bound, you need to look at the context. It may be that epsilon is a reasonable estimate of the error in the calculation that produced someV...
Immutable vs Mutable types
...he float object is considered to be immutable, with this type of example from my book:
16 Answers
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Recursion or Iteration?
...ml
Link 2: Mastering Recursion
Most of recursion's bad reputation comes from the high costs and inefficiency in imperative languages. The author of this article talks about how to optimize recursive algorithms to make them faster and more efficient. He also goes over how to convert a traditiona...
Type-juggling and (strict) greater/lesser-than comparisons in PHP
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PHP's comparison operators deviate from the computer-scientific definitions in several ways:
In order to constitute an equivalence relation == has to be reflexive, symmetric and transitive:
PHP's == operator is not reflexive, i.e. $a == $a is not always tru...
Parse an HTML string with JS
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Problem: I need to get links from <frame> tag. But with this solution, the frame tag are deleted...
– stage
May 21 '12 at 10:10
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Git diff --name-only and copy that list
...ead, that says to put them where the later REPLACE is. (That's a nice tip from this Server Fault answer.)
The -a parameter to rsync means to preserve permissions, ownership, etc. if possible. The -R means to use the full relative path when creating the files in the destination.
Update: if you ha...
Python constructors and __init__
...ed called "Constructors"? What is their purpose and how are they different from methods in a class?
5 Answers
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numpy: most efficient frequency counts for unique values in an array
... 1]])
Original answer:
you can use scipy.stats.itemfreq
>>> from scipy.stats import itemfreq
>>> x = [1,1,1,2,2,2,5,25,1,1]
>>> itemfreq(x)
/usr/local/bin/python:1: DeprecationWarning: `itemfreq` is deprecated! `itemfreq` is deprecated and will be removed in a future...