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Keep only date part when using pandas.to_datetime
...g to screen
saving to csv
using the column to groupby
... and it is much more efficient, since the operation is vectorized.
EDIT: in fact, the answer the OP's would have preferred is probably "recent versions of pandas do not write the time to csv if it is 00:00:00 for all observations".
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What is the difference between Set and List?
...t.
Set<E>:
A collection that contains no
duplicate elements. More formally,
sets contain no pair of elements e1
and e2 such that e1.equals(e2), and at
most one null element. As implied by
its name, this interface models the
mathematical set abstraction.
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When to create a new app (with startapp) in Django?
...were released publicly. This often encourages me to shrink the buckets and more clearly define its "purpose".
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Replace only some groups with Regex
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I edited your answer to provide more info, but what you said is totally correct. Don't know how I missed that I could put everything inside groups, no matter if will use them or not :). In my opinion, that solution is much better and cleaner than using look...
How to force Chrome's script debugger to reload javascript?
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For those who are coming to this question more recently, note that the settings menu is off the three vertical dots menu in Developer Tools. There you will be able to check the box to disable cache.
– Scott C Wilson
Jun 1 '17 a...
Virtualizing an ItemsControl?
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There's actually much more to it than just making the ItemsPanelTemplate use VirtualizingStackPanel. The default ControlTemplate for ItemsControl does not have a ScrollViewer, which is the key to virtualization. Adding to the the default control t...
AngularJS toggle class using ng-class
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Add more than one class based on the condition:
<div ng-click="AbrirPopUp(s)"
ng-class="{'class1 class2 class3':!isNew,
'class1 class4': isNew}">{{ isNew }}</div>
Apply: class1 + class2 + class3 when i...
What's the difference between faking, mocking, and stubbing?
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Splitting templated C++ classes into .hpp/.cpp files--is it possible?
...epresent only data structures not the algorithms. This enables you to hide more valuable implementation details in separate non-templatized class libraries, the classes inside which would work on the template classes or just use them to hold data. The template class would actually contain less code ...