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R script line numbers at error?

... a long R script from the command line (R --slave script.R), how can I get it to give line numbers at errors? 6 Answers ...
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jQuery set radio button

I am trying to set a radio button. I want set it by using the value or the id. 12 Answers ...
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Truncating floats in Python

I want to remove digits from a float to have a fixed number of digits after the dot, like: 29 Answers ...
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What's the difference between the atomic and nonatomic attributes?

... The last two are identical; "atomic" is the default behavior (note that it is not actually a keyword; it is specified only by the absence of nonatomic -- atomic was added as a keyword in recent versions of llvm/clang). Assuming that you are @synthesizing the method implementations, atomic vs. no...
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Unable to launch the IIS Express Web server

I have an asp.net MVC 4 solution. When I try to open it using Visual studio 2012, I get following error: 53 Answers ...
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How can I check if a directory exists in a Bash shell script?

What command can be used to check if a directory exists or not, within a Bash shell script? 35 Answers ...
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Failed to serialize the response in Web API with Json

I am working with ASP.NET MVC 5 Web Api. I want consult all my users. 27 Answers 27 ...
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How do I force Postgres to use a particular index?

How do I force Postgres to use an index when it would otherwise insist on doing a sequential scan? 6 Answers ...
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How to send an email with Python?

...this example, assume that # the text file contains only ASCII characters. with open(textfile, 'rb') as fp: # Create a text/plain message msg = MIMEText(fp.read()) # me == the sender's email address # you == the recipient's email address msg['Subject'] = 'The contents of %s' % textfile msg['...
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Why does UITableViewCell remain highlighted?

...l to remain highlighted after being touched? I click the cell and can see it stays highlighted as a detail view is pushed. Once the detail view is popped, the cell is still highlighted. ...