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How to access pandas groupby dataframe by key
...t uses data-structures already available in the groupby object.
You can select different columns using the groupby slicing:
In [22]: gb[["A", "B"]].get_group("foo")
Out[22]:
A B
0 foo 1.624345
2 foo -0.528172
4 foo 0.865408
In [23]: gb["C"].get_group("foo")
Out[23]:
0 5
2 ...
How to calculate time in hours between two dates in iOS
...developer.apple.com/library/mac/navigation/
or if you are using Xcode just select help/documentation from the menu.
See: how-to-convert-an-nstimeinterval-seconds-into-minutes
--edit: See ÐąrέÐέvil's answer below for correctly handling daylight savings/leap seconds
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Turn off constraints temporarily (MS SQL)
...8)
-- List of all tables
DECLARE triggerCursor CURSOR FOR
SELECT t.TABLE_NAME AS TableName
, t.TABLE_SCHEMA AS TableSchema
FROM INFORMATION_SCHEMA.TABLES t
ORDER BY t.TABLE_NAME, t.TABLE_SCHEMA
OPEN triggerCursor
FETCH NEXT FROM triggerC...
Submitting HTML form using Jquery AJAX
...ral web actions GET, POST, PUT, and DELETE; these directly correspond with SELECT/Retreiving DATA, INSERTING DATA, UPDATING/UPSERTING DATA, and DELETING DATA. A default HTML/ASP.Net webform/PHP/Python or any other form action is to "submit" which is a POST action. Because of this the below will al...
Flatten List in LINQ
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Try SelectMany()
var result = iList.SelectMany( i => i );
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git - merge conflict when local is deleted but file exists in remote
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In Git GUI, you select the conflicted file and then right-click on the main text area where the conflicted text is shown.
In the context menu that appears, you can choose to go with "Remote" or go with "Local". So if a file is remotely del...
Difference between a Message Broker and an ESB
... fail or fail temporarily with self healing based on your deployment model selected. With microservices based deployment or iPAAS, ESB's now have auto-scaling capabilities(horizontally or vertically) with features varying based on the vendor selected.
For a very high level capabilities that ESB pro...
CSS selector based on element text? [duplicate]
Is there a way to select an element in css based on element text?
3 Answers
3
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How to filter array in subdocument with MongoDB [duplicate]
...es the aggregation operation modify the document or does it just perform a selection ?
– Cherif
Oct 27 '13 at 22:18
3
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Is there an alternative sleep function in C to milliseconds?
... tv.tv_sec = milliseconds / 1000; tv.tv_usec = milliseconds % 1000 * 1000; select(0, NULL, NULL, NULL, &tv); instead of usleep(milliseconds * 1000);. Credit goes here.
– Josh Sanford
Sep 29 '16 at 18:18
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