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What does .SD stand for in data.table in R
.SD looks useful but I do not really know what I am doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it?
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Inline functions in C#?
How do you do "inline functions" in C#? I don't think I understand the concept. Are they like anonymous methods? Like lambda functions?
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How can I see the size of files and directories in linux? [closed]
How can I see the size of files and directories in Linux? If use df -m , then it shows the size of all the directory at the top level, but, for the directories and files inside the directory, how do I check the size?
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Extracting text OpenCV
I am trying to find the bounding boxes of text in an image and am currently using this approach:
10 Answers
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How to call getClass() from a static method in Java?
I have a class that must have some static methods. Inside these static methods I need to call the method getClass() to make the following call:
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How to read a file without newlines?
In Python, calling
9 Answers
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ASP.NET MVC: What is the purpose of @section? [closed]
...tion, I saw this blog article .
The author ScottGu adds @section to the Index.cshtml.
4 Answers
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How to determine the number of days in a month in SQL Server?
I need to determine the number of days in a month for a given date in SQL Server.
28 Answers
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How to get the current branch name in Git?
...om a Subversion background and, when I had a branch, I knew what I was working on with "These working files point to this branch".
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PostgreSQL: How to pass parameters from command line?
I have a somewhat detailed query in a script that uses ? placeholders. I wanted to test this same query directly from the psql command line (outside the script). I want to avoid going in and replacing all the ? with actual values, instead I'd like to pass the arguments after the query.
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