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Creating an R dataframe row-by-row
I would like to construct a dataframe row-by-row in R. I've done some searching, and all I came up with is the suggestion to create an empty list, keep a list index scalar, then each time add to the list a single-row dataframe and advance the list index by one. Finally, do.call(rbind,) on the list...
Why should eval be avoided in Bash, and what should I use instead?
Time and time again, I see Bash answers on Stack Overflow using eval and the answers get bashed, pun intended, for the use of such an "evil" construct. Why is eval so evil?
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What does the ^ operator do in Java?
What function does the ^ (caret) operator serve in Java?
17 Answers
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Is there a way to include commas in CSV columns without breaking the formatting?
I've got a two column CSV with a name and a number. Some people's name use commas, for example Joe Blow, CFA. This comma breaks the CSV format, since it's interpreted as a new column.
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Usage of forceLayout(), requestLayout() and invalidate()
I'm a bit confused about the roles of forceLayout() , requestLayout() and invalidate() methods of the View class.
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Creating an index on a table variable
Can you create an index on a table variable in SQL Server 2000?
3 Answers
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Java switch statement: Constant expression required, but it IS constant
So, I am working on this class that has a few static constants:
13 Answers
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Everyauth vs Passport.js?
Everyauth and Passport.js seem to have very similar feature sets. What are some of the positive and negative comparisons between the two that would make me want to use one over the other?
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Which kind of pointer do I use when?
Ok, so the last time I wrote C++ for a living, std::auto_ptr was all the std lib had available, and boost::shared_ptr was all the rage. I never really looked into the other smart pointer types boost provided. I understand that C++11 now provides some of the types boost came up with, but not all ...
Uses of Action delegate in C# [closed]
I was working with the Action Delegates in C# in the hope of learning more about them and thinking where they might be useful.
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