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Numpy argsort - what is it doing?
...ocumentation
Returns the indices that would sort an array.
2 is the index of 0.0.
3 is the index of 0.1.
1 is the index of 1.41.
0 is the index of 1.48.
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Best way to iterate through a Perl array
...is special-cased to avoid flattening the array. The loop iterates over the indexes of the array.
In terms of readability: #1.
In terms of flexibility: #1/#4 and #5.
#2 does not support elements that are false. #2 and #3 are destructive.
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Why would I want stage before committing in Git?
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When you commit it's only going to commit the changes in the index (the "staged" files). There are many uses for this, but the most obvious is to break up your working changes into smaller, self-contained pieces. Perhaps you fixed a bug while you were implementing a feature. You can...
Mongoose indexing in production code
...erstood why the Mongoose documentation so broadly recommends disabling autoIndex in production. Once the index has been added, subsequent ensureIndex calls will simply see that the index already exists and then return. So it only has an effect on performance when you're first creating the index, a...
Add x and y labels to a pandas plot
...uccinctly: ax.set(xlabel="x label", ylabel="y label").
Alternatively, the index x-axis label is automatically set to the Index name, if it has one. so df2.index.name = 'x label' would work too.
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Accessing items in an collections.OrderedDict by index
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If its an OrderedDict() you can easily access the elements by indexing by getting the tuples of (key,value) pairs as follows
>>> import collections
>>> d = collections.OrderedDict()
>>> d['foo'] = 'python'
>>> d['bar'] = 'spam'
>>> d.items()...
Finding out current index in EACH loop (Ruby) [duplicate]
I want to find out the current index while i am in the each loop. how do i do so?
2 Answers
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boost自定义composite_key_compare比较函数 - C/C++ - 清泛网 - 专注C/C++及内核技术
..."boost/bimap.hpp"
#include "boost/tuple/tuple.hpp"
#include "boost/multi_index_container.hpp"
#include "boost/multi_index/member.hpp"
#include "boost/multi_index/ordered_index.hpp"
#include "boost/multi_index/composite_key.hpp"
#include "boost/multi_index/identity.hpp"
#include "boost/multi_i...
Get the last non-empty cell in a column in Google Sheets
...e up with:
The function to find the last populated cell in a column is:
=INDEX( FILTER( A:A ; NOT( ISBLANK( A:A ) ) ) ; ROWS( FILTER( A:A ; NOT( ISBLANK( A:A ) ) ) ) )
So if you combine it with your current function it would look like this:
=DAYS360(A2,INDEX( FILTER( A:A ; NOT( ISBLANK( A:A ) )...
How can I extract embedded fonts from a PDF as valid font files?
...e subset of glyphs used in the document.
Using pdftops
One of the most frequently used methods to do this on *nix systems consists of the following steps:
Convert the PDF to PostScript, for example by using XPDF's pdftops (on Windows: pdftops.exe helper program.
Now fonts will be embedded in .pfa ...