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pandas GroupBy columns with NaN (missing) values
... from pandas 1.1 you have better control over this behavior, NA values are now allowed in the grouper using dropna=False
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Remove all breakpoints in IntelliJ IDEA
...ect, hence the comment vs an answer), but I think the keyboard shortcut is now Alt+F9. Ctrl+Shift+F8 doesn't do anything for me.
– Brandon
Jan 2 '17 at 18:34
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Does the APNS device token ever change, once created?
...ferent devices with the exact same APNS token. I see in front of me right now an iPad 2, and an iPhone 3GS that have sent us the same token. Can anyone else confirm this behavior?
– DougW
Jun 23 '12 at 1:26
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Why should text files end with a newline?
...miliar with the adage that all text files should end with a newline. I've known of this "rule" for years but I've always wondered — why?
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How do you manage your gists on GitHub? [closed]
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Now gist.github.com supports search. So you can search your gist. I use #hashtag in description, so I
can search my gist by tags via user:myusername #tag.
For offline usage, I cloned all my gists. And use find and grep to...
Where to get “UTF-8” string literal in Java?
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Now I use org.apache.commons.lang3.CharEncoding.UTF_8 constant from commons-lang.
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Understanding recursion [closed]
...value of its left child, if any, and the value of its right child, if any. Now recall that the children, if they're not null, are also nodes.
So to sum the left child, we would add the value of child node itself to the value of its left child, if any, and the value of its right child, if any.
So ...
javac is not recognized as an internal or external command, operable program or batch file [closed]
...jre). Enter the directory.
Then enter the bin directory of that.
You are now in the correct directory. Copy the path. If in File Explorer, click the address bar. If in Command Prompt, copy the prompt.
The resulting Java path should be in the form of (without quotes):
C:\Program Files\Java\jdkxxx...
Mercurial: how to amend the last commit?
...nd have some other changes (3) Commit changes, resulting in revision 3 (4) Now I'll change my mind and decide "file" should not be removed from the commit, so I want to amend revision 3. Hence, I'll re-add "file" which is now unversioned (5) Now I perform rollback: it will reset the dirstate and mar...
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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