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Why would a static nested interface be used in Java?
...t code which cannot access Foo will not be able to access Foo.Bar either. (From source code - bytecode or reflection can access Foo.Bar even if Foo is package-private!)
It is acceptable style to create a nested interface this way if you expect it to be used only from the outer class, so that you do...
How to count TRUE values in a logical vector
... My reply is just too long, so I posted a new answer, since it differs from previous one.
– aL3xa
Feb 5 '10 at 18:25
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How to empty a list?
...
This actually removes the contents from the list, but doesn't replace the old label with a new empty list:
del lst[:]
Here's an example:
lst1 = [1, 2, 3]
lst2 = lst1
del lst1[:]
print(lst2)
For the sake of completeness, the slice assignment has the same ...
How to remove part of a string? [closed]
...ntial double spaces, beginning spaces or end spaces that may have resulted from removing the unwanted string
$Example_string_COMPLETED = trim(str_replace(' ', ' ', $Example_string_PART_REMOVED));
// trim() will remove any potential leading and trailing spaces - the additional 'str_replace()' will r...
Iterating through a range of dates in Python
...unction to completely hide/abstract the iteration over the range of dates:
from datetime import timedelta, date
def daterange(start_date, end_date):
for n in range(int((end_date - start_date).days)):
yield start_date + timedelta(n)
start_date = date(2013, 1, 1)
end_date = date(2015, 6,...
Remove commas from the string using JavaScript
I want to remove commas from the string and calculate those amount using JavaScript.
2 Answers
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How do I calculate percentiles with python/numpy?
...ues. Note N MUST BE already sorted.
@parameter percent - a float value from 0.0 to 1.0.
@parameter key - optional key function to compute value from each element of N.
@return - the percentile of the values
"""
if not N:
return None
k = (len(N)-1) * percent
f = m...
Converting between strings and ArrayBuffers
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38 | ? | 20 | ? | - | 38
Data from MDN - `npm i -g mdncomp` by epistemex
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What is Normalisation (or Normalization)?
...r, leading to data corruption.
There is a number of normalization levels from 1. normal form through 5. normal form. Each normal form describes how to get rid of some specific problem, usually related to redundancy.
Some typical normalization errors:
(1) Having more than one value in a cell. Exa...
Convert a number range to another range, maintaining ratio
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This is wrong. You need to subtract Old Min from Old Value before the divide.
– SPWorley
May 30 '09 at 5:54
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