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Combine two data frames by rows (rbind) when they have different sets of columns
Is it possible to row bind two data frames that don't have the same set of columns? I am hoping to retain the columns that do not match after the bind.
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Why does Enumerable.All return true for an empty sequence? [duplicate]
The code creates an empty collection of string, then tries to determine if all the elements in the collection are "ABC".
If you run it, b will be true.
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Javascript “Uncaught TypeError: object is not a function” associativity question
Code is as follows:
6 Answers
6
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Unicode characters in URLs
In 2010, would you serve URLs containing UTF-8 characters in a large web portal?
7 Answers
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library not found for -lPods
I got an error when archiving a project. This is my environment.
42 Answers
42
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Why does X[Y] join of data.tables not allow a full outer join, or a left join?
This is a bit of a philosophical question about data.table join syntax. I am finding more and more uses for data.tables, but still learning...
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What does “while True” mean in Python?
While WHAT is True?
15 Answers
15
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plot a circle with pyplot
surprisingly I didn't find a straight-forward description on how to draw a circle with matplotlib.pyplot (please no pylab) taking as input center (x,y) and radius r. I tried some variants of this:
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Why is it considered a bad practice to omit curly braces? [closed]
Why does everyone tell me writing code like this is a bad practice?
52 Answers
52
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How do I get a UTC Timestamp in JavaScript?
While writing a web application, it makes sense to store (server side) all datetimes in the DB as UTC timestamps.
16 Answ...