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Breaking loop when “warnings()” appear in R

I am having an issue: I am running a loop to process multiple files. My matrices are enormous and therefore I often run out of memory if I am not careful. ...
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What is a lambda expression in C++11?

What is a lambda expression in C++11? When would I use one? What class of problem do they solve that wasn't possible prior to their introduction? ...
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What does new self(); mean in PHP?

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How do you exit from a void function in C++?

How can you prematurely exit from a function without returning a value if it is a void function? I have a void method that needs to not execute its code if a certain condition is true. I really don't want to have to change the method to actually return a value. ...
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How can I assign the output of a function to a variable using bash?

I have a bash function that produces some output: 3 Answers 3 ...
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Using pg_dump to only get insert statements from one table within database

I'm looking for a way to get all rows as INSERT statements from one specific table within a database using pg_dump in PostgreSQL. ...
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Error to install Nokogiri on OSX 10.9 Maverick?

I upgraded my OSX (Lion) to Mavericks and I can't install Nokogiri for my projects. 30 Answers ...
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Flatten an Array of Arrays in Swift

Is there a counterpart in Swift to flatten in Scala, Xtend, Groovy, Ruby and co? 14 Answers ...
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How to get a specific output iterating a hash in Ruby?

I want to get a specific output iterating a Ruby Hash. 6 Answers 6 ...
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Assigning default value while creating migration file

Ok I use above line to create migration file that automatically generates code in the generated file to add a column to a model Tweet with datatype integer. Now I want to add default value to the added column while generating the migration file. Is that possible? I googled it but couldn't find. Guys...