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Check for installed packages before running install.packages() [duplicate]
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Does not work on my linux machine (works fine on my windows machine). Two possible reasons: (1) system.file does not look in all .libPath() locations, and (2) my conda based R installation alters the .libPaths in some way.
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Android: ScrollView force to bottom
...way without lose focus current element, when i do this i lose the focus of my current element (different from scrollview)
– rkmax
Sep 21 '14 at 16:48
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What is sharding and why is it important?
...rizontal scaling across multiple logical or physical nodes (in the case of my understanding (mySQL) multiple databases, most likely housed on different logical hardware). Horizontal partitioning is a less specific term, of which "Sharding" is a subset. Again using mySQL as an example, a mySQL parti...
SQL Server, convert a named instance to default instance?
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I also wanted to convert a named instance to default - my reason was to access it with just the machine name from various applications.
If you want to access a named instance from any connection string without using the instance name, and using only the server name and/or IP add...
How do I fix the indentation of an entire file in Vi?
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I'll never be able to unlearn my precious 1G =) One of my favorites is =% standing on an opening bracket. It fixes the indents of the whole block.
– PEZ
Feb 3 '09 at 8:05
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“Inner exception” (with traceback) in Python?
My background is in C# and I've just recently started programming in Python. When an exception is thrown I typically want to wrap it in another exception that adds more information, while still showing the full stack trace. It's quite easy in C#, but how do I do it in Python?
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Rename a class in Xcode: Refactor… is grayed out (disabled). Why?
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My class's header file has only @interface, no @class. But selecting the symbol after @interface seems to work.
– Elliot
Jul 8 '09 at 23:04
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Better explanation of when to use Imports/Depends
...Depends' is a horrible thing. It means I basically can't use 'Imports' in my package until everyone else is too. =(
– Ken Williams
Apr 19 '13 at 18:39
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Default filter in Django admin
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class MyModelAdmin(admin.ModelAdmin):
def changelist_view(self, request, extra_context=None):
if not request.GET.has_key('decommissioned__exact'):
q = request.GET.copy()
q['decommissioned__...
Java: How to set Precision for double value? [duplicate]
...alFormat, depending on what you want to do with the value later.
See also my answer to this question for a refutation of the inevitable *100/100 answers.
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