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What does the vertical bar mean in R?
The vertical bar | is commonly referred to as a “pipe”. It is used to pipe one command into another. That is, it directs the output from the first command into the input for the second command.
What do vertical bars in math mean?
The vertical bar is often called a ‘pipe’. It is often used in mathematics, logic and statistics. It typically is read as ‘given that’. In probability and statistics it often indicates conditional probability, but can also indicate a conditional distribution. You can read it as ‘conditional on’.
What is vertical line symbol called?
vertical slash
The vertical line, also called the vertical slash or upright slash ( | ), is used in mathematical notation in place of the expression “such that” or “it is true that.” This symbol is commonly encountered in statements involving logic and sets.
What do 2 vertical lines mean in math?
Absolute Value
Absolute Value Examples and Equations The most common way to represent the absolute value of a number or expression is to surround it with the absolute value symbol: two vertical straight lines. |–6| = 6 means “the absolute value of –6 is 6.”
What is a vertical bar used for?
The vertical bar is a character with various uses in mathematics, where it can be used to represent absolute value, among others; in computing and programming and in general typography, as a divider not unlike the interpunct.
How do you use vertical bar in a sentence?
Vertical-bar Sentence Examples
- A colored vertical bar appears alongside the window of whoever is speaking, thus giving a visual confirmation of who is the current speaker.
- Ice the cake with a layer of buttercream, and using the basketweave tip, pipe one vertical bar from the top edge of the cake to the bottom.
Why is the pipe the most important operator in R?
The pipe has a huge advantage over any other method of processing data in R: it makes processes easy to read. If we read %>% as “then”, the code from the previous section is very easy to digest as a set of instructions in plain English: This is far more readable than if we were to express this process in another way.
How do you print a pipe in R?
The slightly easier keyboard shortcut CTRL + SHIFT + M will print a pipe in RStudio! Need style guidance about how to format pipes? Check out this helpful section from ‘R Style Guide’ by Hadley Wickham. Want to learn a bit more about the history of pipes in R?
Do you need to escape the vertical bar in strsplit?
As you can read on ?strsplit, the argument split in function strsplit is a regular expression. Hence either you need to escape the vertical bar (it is a special character) Thanks for contributing an answer to Stack Overflow!
When was the forward pipe operator introduced in R?
The history of this operator in R starts, according to this fantastic blog post written by Adolfo Álvarez, on January 17th, 2012, when an anonymous user asked the following question in this Stack Overflow post: How can you implement F#’s forward pipe operator in R? The operator makes it possible to easily chain a sequence of calculations.