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How do I make a matrix from a list of vectors in R?
Goal: from a list of vectors of equal length, create a matrix where each vector becomes a row.
6 Answers
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Will the Garbage Collector call IDisposable.Dispose for me?
The .NET IDisposable Pattern implies that if you write a finalizer, and implement IDisposable, that your finalizer needs to explicitly call Dispose.
This is logical, and is what I've always done in the rare situations where a finalizer is warranted.
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List comprehension with if statement
I want to compare 2 iterables and print the items which appear in both iterables.
4 Answers
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How to generate an openSSL key using a passphrase from the command line?
First - what happens if I don't give a passphrase? Is some sort of pseudo random phrase used? I'm just looking for something "good enough" to keep casual hackers at bay.
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Does a finally block run even if you throw a new Exception?
In this code will someVar be set even if the catch block is executed and the second Exception is thrown?
6 Answers
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Placeholder in UITextView
My application uses an UITextView . Now I want the UITextView to have a placeholder similar to the one you can set for an UITextField .
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Excel VBA - exit for loop
I would like to exit my for loop when a condition inside is met. How could I exit my for loop when the if condition has been met? I think some kind of exit at the end of my if statement, but don't know how that would work.
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Create a dictionary on a list with grouping
I have the following object in a list:
4 Answers
4
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How to force a view refresh without having it trigger automatically from an observable?
Note: this is mostly for debugging and understanding KnockoutJS.
3 Answers
3
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IF statement: how to leave cell blank if condition is false (“” does not work)
I would like to write an IF statement, where the cell is left blank if the condition is FALSE.
Note that, if the following formula is entered in C1 ( for which the condition is false ) for example:
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