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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()...
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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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 ) )...
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...
Why do Lua arrays(tables) start at 1 instead of 0?
...understand the rationale behind the decision of this part of Lua. Why does indexing start at 1? I have read (as many others did) this great paper . It seems to me a strange corner of a language that is very pleasant to learn and program. Don't get me wrong, Lua is just great but there has to be an ...
Rails: Adding an index after adding column
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You can run another migration, just for the index:
class AddIndexToTable < ActiveRecord::Migration
def change
add_index :table, :user_id
end
end
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What should every developer know about databases? [closed]
...There's a connection between what I wrote and topics such as Explain Plan, Indexing, and Data Normalization. I'd love to discuss that connection in greater depth in some sort of discussion forum. SO is not such a forum.
– Walter Mitty
Jan 1 '10 at 14:15
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Difference between Key, Primary Key, Unique Key and Index in MySQL
When should I use KEY , PRIMARY KEY , UNIQUE KEY and INDEX ?
8 Answers
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List all indexes on ElasticSearch server?
I would like to list all indexes present on an ElasticSearch server. I tried this:
22 Answers
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