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Aggregate summarize multiple variables per group eg sum mean
From a data frame is there a easy way to aggregate sum mean max etc multiple variables simultaneously Below are some sample data librarylubridate days 3652
Array slicing in Ruby explanation for illogical behaviour taken from Rubykoanscom
I was going through the exercises in Ruby Koans and I was struck by the following Ruby quirk that I found really unexplainable array peanut butter and jelly
Auto-fit TextView for Android
Background Many times we need to autofit the font of the TextView to the boundaries given to it The problem Sadly even though there are many threads and posts
Autocompletion in Vim
In a nutshell Im searching for a working autocompletion feature for the Vim editor Ive argued before that Vim completely replaces an IDE under Linux and while
Automatically hard wrap lines at column in VSCode
How can I automatically hard wrap lines in VSCode By that I mean if a line reaches a specified column automatically insert a newline at the word boundary
Best practice for Django project working directory structure closed
Closed This question is opinionbased It is not currently accepting answers Want to improve this question Update the question so it can be answered with facts
Best way to convert strings to symbols in hash
Whats the fastestcleaneststraightforward way to convert all keys in a hash from strings to symbols in Ruby This would be handy when parsing YAML myhash
Build was configured to prefer settings repositories over project repositories but repository maven was added by build file buildgradle
I want to add jitpackio as a repository in my gradle file This is my gradle root file buildscript repositories google mavenCentral dependencies classpath
Capture Image from Camera and Display in Activity
I want to write a module where on a click of a button the camera opens and I can click and capture an image If I dont like the image I can delete it and click
