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pandas GroupBy columns with NaN (missing) values
...the same placeholder hack).
However, as described in another answer, 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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How to prevent auto-closing of console after the execution of batch file
What command can I put at the end of a batch file to prevent auto-closing of the console after the execution of the file?
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Lightweight Javascript DB for use in Node.js [closed]
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I'm only familiar with Mongo and Couch, but there's also one named Persistence.
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Swift days between two NSDates
I'm wondering if there is some new and awesome possibility to get the amount of days between two NSDates in Swift / the "new" Cocoa?
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What are the differences between segment trees, interval trees, binary indexed trees and range trees
...re differences between segment trees, interval trees, binary indexed trees and range trees in terms of:
2 Answers
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How do I convert an existing callback API to promises?
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Promises have state, they start as pending and can settle to:
fulfilled meaning that the computation completed successfully.
rejected meaning that the computation failed.
Promise returning functions should never throw, they should return rejections instead. Throwi...
Get Character value from KeyCode in JavaScript… then trim
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Maybe I didn't understand the question correctly, but can you not use keyup if you want to capture both inputs?
$("input").bind("keyup",function(e){
var value = this.value + String.fromCharCode(e.keyCode);
});
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How do I select a merge strategy for a git rebase?
...xtra options that are understood by the chosen merge strategy.
NB: "Ours" and "theirs" mean the opposite of what they do during a straight merge. In other words, "theirs" favors the commits on the current branch.
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Should accessing SharedPreferences be done off the UI Thread?
...haredPreferenced$Editor.apply() instead of commit(). apply() is new in GB and async (but always safe, careful of lifecycle transitions). You can use reflection to conditionally call apply() on GB+ and commit() on Froyo or below. I'll be doing a blogpost with sample code of how to do this.
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Confused about __str__ on list in Python [duplicate]
Coming from a Java background, I understand that __str__ is something like a Python version of toString (while I do realize that Python is the older language).
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