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Convert Pandas column containing NaNs to dtype `int`
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In v0.24, you can now do df = df.astype(pd.Int32Dtype()) (to convert the entire dataFrame, or) df['col'] = df['col'].astype(pd.Int32Dtype()). Other accepted nullable integer types are pd.Int16Dtype and pd.Int64Dtype. Pick your poison.
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Static function variables in Swift
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Swift 1.2 with Xcode 6.3 now supports static as expected. From the Xcode 6.3 beta release notes:
“static” methods and properties are now allowed in classes (as an
alias for “class final”). You are now allowed to declare static stored
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Copying files from one directory to another in Java
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For now this should solve your problem
File source = new File("H:\\work-temp\\file");
File dest = new File("H:\\work-temp\\file2");
try {
FileUtils.copyDirectory(source, dest);
} catch (IOException e) {
e.printStackTrace...
Case-insensitive search in Rails model
...ot's comment does not apply to strings from user input. "#$$" is a little-known shortcut for escaping global variables with Ruby string interpolation. It's equivalent to "#{$$}". But string interpolation doesn't happen to user-input strings. Try these in Irb to see the difference: "$##" and '$##'. T...
How to get package name from anywhere?
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This seems the most practical solution for me right now but it does require me to create a subclass of the activity... +1 for now.
– ef2011
Jul 5 '11 at 23:12
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Convert String to Type in C# [duplicate]
...ely, if you have a reference to the assembly already (e.g. through a well-known type) you can use Assembly.GetType:
Assembly asm = typeof(SomeKnownType).Assembly;
Type type = asm.GetType(namespaceQualifiedTypeName);
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Please explain some of Paul Graham's points on Lisp
...ints (3) and (4) on your list seem the most interesting and still relevant now.
To understand them, it is useful to have a clear picture of what happens with Lisp code -- in the form of a stream of characters typed in by the programmer -- on its way to being executed. Let's use a concrete example:
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JUnit: how to avoid “no runnable methods” in test utils classes
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That kind of irritated me.
So I made BaseTixContainerTest abstract, and now JUnit truly ignores it.
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0
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How do you enable “Enable .NET Framework source stepping”?
...ogram Manager, Base Class Libraries, .NET Framework) that the issue should now be resolved. The Connect entry is marked as Resolved (Fixed) :
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Determine on iPhone if user has enabled push notifications
... hear their response on this issue. How can we develop great apps without knowing such basic info??
– Oded Regev
Mar 21 '13 at 11:59
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