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How can I create a correlation matrix in R?
I have 92 set of data of same type.
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What will happen if I modify a Python script while it's running?
Imagine a python script that will take a long time to run, what will happen if I modify it while it's running? Will the result be different?
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Rails - Validate Presence Of Association?
I have a model A that has a "has_many" association to another model B. I have a business requirement that an insert into A requires at least 1 associated record to B. Is there a method I can call to make sure this is true, or do I need to write a custom validation?
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Vim Regex Capture Groups [bau -> byau : ceu -> cyeu]
I have a list of words:
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Sharing Test code in Maven
How can you depend on test code from another module in Maven?
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Rails filtering array of objects by attribute value
So I perform a query to the db and I have a complete array of objects:
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How to PUT a json object with an array using curl
I have a series of data to enter into database. The user interface to enter the data isn't good for bulk entry, so I'm trying to formulate a command line equivalent. When I examine the network request of the UI in chrome, I see a PUT request of a json object. When I try to replicate the request
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linux tee is not working with python?
I made a python script which communicates with a web server using an infinite loop.
I want to log every communication data to a file and also monitor them from terminal at same time. so I used tee command like this.
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How to keep up with the latest versions of Node.js in Ubuntu? PPA? Compiling?
Where can (can I ?) find .deb packages for the latest versions of Node.js ?
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How does OpenID authentication work?
I am a little curious to know about how OpenID authentication works.
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