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Is there an R function for finding the index of an element in a vector?
In R, I have an element x and a vector v . I want to find the first index of an element in v that is equal to x . I know that one way to do this is: which(x == v)[[1]] , but that seems excessively inefficient. Is there a more direct way to do it?
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Invoke-WebRequest, POST with parameters
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Java “params” in method signature?
In C#, if you want a method to have an indeterminate number of parameters, you can make the final parameter in the method signature a params so that the method parameter looks like an array but allows everyone using the method to pass as many parameters of that type as the caller wants.
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Position absolute and overflow hidden
... other. If the outer DIV is not positioned absolute then the inner DIV, which is positioned absolute, does not obey the overflow hidden of the outer DIV ( example ).
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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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Intellij IDEA show javadoc automatically
When I am coding at Netbeans it autocompletes the code and show Javadocs. However when I am using Intellij IDEA if I click Ctrl+Space I can see the auto-complete and if I click Ctrl+Q I can see the javadoc seperately.
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How to access pandas groupby dataframe by key
How do I access the corresponding groupby dataframe in a groupby object by the key?
5 Answers
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SVN checkout the contents of a folder, not the folder itself
I'm fairly new to linux and svn. I'm trying to checkout the trunk folder of a project into my public_html directory using this command (while in public_html):
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In Ruby how do I generate a long string of repeated text?
What is the best way to generate a long string quickly in ruby? This works, but is very slow:
2 Answers
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jQuery - selecting elements from inside a element
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