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Expert R users, what's in your .Rprofile? [closed]

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WITH CHECK ADD CONSTRAINT followed by CHECK CONSTRAINT vs. ADD CONSTRAINT

I'm looking at the AdventureWorks sample database for SQL Server 2008, and I see in their creation scripts that they tend to use the following: ...
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How do I convert a String object into a Hash object?

...d rm -fr – Pithikos Apr 5 '16 at 14:23 add a comment  |  ...
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How to know what the 'errno' means?

When calling execl(...) , I get an errno=2 . What does it mean? How can I know the meaning of this errno ? 15 Answers ...
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An efficient way to transpose a file in Bash

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arrayfun can be significantly slower than an explicit loop in matlab. Why?

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In a Bash script, how can I exit the entire script if a certain condition occurs?

... Michael FoukarakisMichael Foukarakis 34.2k55 gold badges7373 silver badges110110 bronze badges ...
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Preventing form resubmission

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how to break the _.each function in underscore.js

... 267 You can't break from the each method—it emulates the native forEach method's behavior, and t...
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Add missing dates to pandas dataframe

... 270 You could use Series.reindex: import pandas as pd idx = pd.date_range('09-01-2013', '09-30-2...