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How do I replace NA values with zeros in an R dataframe?
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There's no need to apply apply. =)
EDIT
You should also take a look at norm package. It has a lot of nice features for missing data analysis. =)
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How can I repeat a character in Bash?
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You can use:
printf '=%.0s' {1..100}
How this works:
Bash expands {1..100} so the command becomes:
printf '=%.0s' 1 2 3 4 ... 100
I've set printf's format to =%.0s which means that it will always print a single = no matter what argument it is given. Therefore it print...
What would a “frozen dict” be?
I guess it could be something like collections.namedtuple , but that is more like a frozen-keys dict (a half-frozen dict). Isn't it?
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How to apply multiple styles in WPF
In WPF, how would I apply multiple styles to a FrameworkElement ? For instance, I have a control which already has a style. I also have a separate style which I would like to add to it without blowing away the first one. The styles have different TargetTypes, so I can't just extend one with the ...
Natural Sort Order in C#
Anyone have a good resource or provide a sample of a natural order sort in C# for an FileInfo array? I am implementing the IComparer interface in my sorts.
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How can I use interface as a C# generic type constraint?
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The closest you can do (except for your base-interface approach) is "where T : class", meaning reference-type. There is no syntax to mean "any interface".
This ("where T : class") is used, for example, in WCF to limit clients to service contracts (interfac...
Skip List vs. Binary Search Tree
...data structure known as a skip list . It seems to have very similar behavior to a binary search tree.
7 Answers
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How do I write a Firefox Addon? [closed]
What are some resources for getting started writing a Firefox Addon? Is there an API guide somewhere? Is there a getting started tutorial somewhere? Is there a developer discussion board somewhere?
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How do I get today's date in C# in mm/dd/yyyy format?
How do I get today's date in C# in mm/dd/yyyy format?
8 Answers
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Keyword for the outer class from an anonymous inner class [duplicate]
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can you tell why a.otherMethod() wont work?
– T.Todua
Jan 17 '17 at 9:28
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