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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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What is “git remote add …” and “git push origin master”?
...o answer your first question.
What is git remote add ...
As you probably know, git is a distributed version control system. Most operations are done locally. To communicate with the outside world, git uses what are called remotes. These are repositories other than the one on your local disk which y...
How do I get the AM/PM value from a DateTime?
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@thomas - Good point. Edited now to specify CultureInfo.InvariantCulture
– Andy
Jun 24 '15 at 11:42
8
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Rebasing a Git merge commit
...bout what contents will be in that merge commit, we only need nice history now.
History will looks like that (ignoring master):
* 51984c7 Merge branch 'topic' [HEAD -> correct-history]
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| * b62cae6 2 [topic]
* | f5a7ca8 5 [origin/master]
* | e7affb...
Sending multipart/formdata with jQuery.ajax
...)[0].files, function(i, file) {
data.append('file-'+i, file);
});
So now you have a FormData object, ready to be sent along with the XMLHttpRequest.
jQuery.ajax({
url: 'php/upload.php',
data: data,
cache: false,
contentType: false,
processData: false,
method: 'POST',
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Moving and vanishing lines of code; trouble with Eclipse's XML Editor
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This bug is (finally) fixed in ADT 21. The fix is now available in ADT 21 Preview 9, posted a few minutes ago, here: https://android-review.googlesource.com/#/c/44936/1
The reason you get weird visual artifacts is that if a file contains broken DOS line endings (multiple ca...
Java Enum definition
...e equivalent to:
public class StatusCode extends Enum<StatusCode>
Now if you check the constraints, we've got Enum<StatusCode> - so E=StatusCode. Let's check: does E extend Enum<StatusCode>? Yes! We're okay.
You may well be asking yourself what the point of this is :) Well, it ...
Cannot refer to a non-final variable inside an inner class defined in a different method
...pture the value in the delegate, change the value in the outer method, and now the delegate sees the new value see, stackoverflow.com/questions/271440/c-captured-variable-in-loop for the C# example of this behaviour that Java aims to avoid.
– Chris Chilvers
Aug...
Visual Studio 2012 Express is suddenly “incompatible with this version of Windows”?
...12 on Windows 7. I've been running it with no problems for several months now.
6 Answers
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Interfaces — What's the point?
...e is an IPizza you can use IPizza wherever you handle an instance of an unknown pizza type. Any instance whose type inherits from IPizza is guaranteed to be orderable, as it has an Order() method.
Python is not statically-typed, therefore types are kept and looked up at runtime. So you can try call...