python Programming Glossary: aggregation

Python: Data Structure for Maintaing Tabular Data in Memory?

http://stackoverflow.com/questions/1038160/python-data-structure-for-maintaing-tabular-data-in-memory

a table in memory that needs lookups sorting and arbitrary aggregation really does call out for SQL. You said you tried SQLite but..

Python Numpy Very Large Matrices

http://stackoverflow.com/questions/1053928/python-numpy-very-large-matrices

old laptop can crunch through data doing SQL like GROUP BY aggregation at 1 000 000 rows second. Not bad for a Python based solution..

Pandas DataFrame aggregate function using multiple columns

http://stackoverflow.com/questions/10951341/pandas-dataframe-aggregate-function-using-multiple-columns

using multiple columns Is there a way to write an aggregation function as is used in DataFrame.agg method that would have..

pandas: apply function to DataFrame that can return multiple rows

http://stackoverflow.com/questions/13050003/pandas-apply-function-to-dataframe-that-can-return-multiple-rows

be transformed to class 0 A 1 C 2 C This is the reverse of aggregation with count function. Is there an easy way to achieve it in pandas..

SQLAlchemy Inheritance

http://stackoverflow.com/questions/1337095/sqlalchemy-inheritance

is whether you actually need inheritance or can do with aggregation. Inheritance will be a pain if you will ever need to change..

Aggregating key value pair in python

http://stackoverflow.com/questions/17034243/aggregating-key-value-pair-in-python

value print result 'kv1' Thanks a lot python key value aggregation share improve this question I'm assuming you meant key 'kv1'..

High-concurrency counters without sharding

http://stackoverflow.com/questions/2769934/high-concurrency-counters-without-sharding

your memcaches and update a random counter instance the aggregation of counters will happen by the database update. When using memcache..

Django equivalent for count and group by

http://stackoverflow.com/questions/327807/django-equivalent-for-count-and-group-by

django share improve this question Update Full ORM aggregation support is now included in Django 1.1 . True to the below warning.. out why if you're on 1.1 or later you should use the real aggregation API anyway. The core aggregation support was already there in.. you should use the real aggregation API anyway. The core aggregation support was already there in 1.0 it's just undocumented unsupported..

Best Practices for Python UnicodeDecodeError

http://stackoverflow.com/questions/3933911/best-practices-for-python-unicodedecodeerror

languages and along with English. I have feed aggregation which generally not bother about unicode ascii utf 8. While..

Python: Correct way to initialize when superclasses accept different arguments?

http://stackoverflow.com/questions/4029550/python-correct-way-to-initialize-when-superclasses-accept-different-arguments

interface. Your best bet is to use composition or aggregation have your class inherit from one of the parent classes and contain..

Running “unique” tasks with celery

http://stackoverflow.com/questions/4095940/running-unique-tasks-with-celery

with celery I use celery to update RSS feeds in my news aggregation site. I use one @task for each feed and things seem to work..

Order a QuerySet by aggregate field value

http://stackoverflow.com/questions/476017/order-a-queryset-by-aggregate-field-value

improve this question Oh of course I forget about new aggregation support in Django and its annotate functionality. So query may..

Django equivalent of COUNT with GROUP BY

http://stackoverflow.com/questions/842031/django-equivalent-of-count-with-group-by

of COUNT with GROUP BY I know Django 1.1 has some new aggregation methods. However I couldn't figure out equivalent of the following.. use plain SQL python sql django django queryset django aggregation share improve this question If you are using Django 1.1..