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How do I check out a specific version of a submodule using 'git submodule'?
How would I go about adding a Git submodule for a specific tag or commit?
2 Answers
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What is the difference between “AS” and “IS” in an Oracle stored procedure?
I see Oracle procedures sometimes written with "AS", and sometimes with "IS" keyword.
6 Answers
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Get value of dynamically chosen class constant in PHP
I would like to be able to do something like this:
7 Answers
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How does Haskell printf work?
Haskell's type safety is second to none only to dependently-typed languages. But there is some deep magic going on with Text.Printf that seems rather type-wonky.
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To find whether a column exists in data frame or not
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Assuming that the name of your data frame is dat and that your column name to check is "d", you can use the %in% operator:
if("d" %in% colnames(dat))
{
cat("Yep, it's in there!\n");
}
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fork() branches more than expected?
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The fork() primitive often stretches the imagination. Until you get a feel for it, you should trace out on paper what each operation is and account for the number of processes. Don't forget that fork() creates a near-perfect copy of the current process. The most significant di...
Git stash uncached: how to put away all unstaged changes?
Suppose two set of changes are made in a project versioned by git. One set is staged and the other is not.
4 Answers
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Doctrine and composite unique keys
I want to do composite unique key in doctrine.
Those are my fields:
3 Answers
3
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iPhone - Get Position of UIView within entire UIWindow
The position of a UIView can obviously be determined by view.center or view.frame etc. but this only returns the position of the UIView in relation to it's immediate superview.
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Showing data values on stacked bar chart in ggplot2
I'd like to show data values on stacked bar chart in ggplot2. Here is my attempted code
2 Answers
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