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Naming returned columns in Pandas aggregate function? [duplicate]
I'm having trouble with Pandas' groupby functionality. I've read the documentation , but I can't see to figure out how to apply aggregate functions to multiple columns and have custom names for those columns.
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“register” keyword in C?
What does the register keyword do in C language? I have read that it is used for optimizing but is not clearly defined in any standard. Is it still relevant and if so, when would you use it?
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How to embed a video into GitHub README.md?
Is it possible to embed a flash video into README.md on GitHub? It isn't showing up: https://github.com/mattdipasquale/PicSciP
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When to use an interface instead of an abstract class and vice versa?
This may be a generic OOP question. I wanted to do a generic comparison between an interface and an abstract class on the basis of their usage.
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When to use the different log levels
There are different ways to log messages, in order of fatality:
18 Answers
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What does the `#` operator mean in Scala?
I see this code in this blog: Type-Level Programming in Scala :
4 Answers
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In Django, how do I check if a user is in a certain group?
I created a custom group in Django's admin site.
12 Answers
12
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Default function arguments in Rust
Is it possible in Rust to create a function with a default argument?
6 Answers
6
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Coding in Other (Spoken) Languages
This is something I've always wondered, and I can't find any mention of it anywhere online. When a shop from, say Japan, writes code, would I be able to read it in English? Or do languages, like C, PHP, anything, have Japanese translations that they write?
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Add line break to ::after or ::before pseudo-element content
I do not have access to the HTML or PHP for a page and can only edit via CSS. I've been doing modifications on a site and adding text via the ::after or ::before pseudo-elements and have found that escape Unicode should be used for things such as a space before or after the added content.
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