What is Plotmath?
What is Plotmath?
Plotmath expressions are used to enter mathematical formulas and symbols to be rendered as text, axis labels, etc. throughout R’s plotting system. I find plotmath expressions to be quite opaque, while LaTeX is a de-facto standard for mathematical expressions, so this package might be useful to others as well.
How do you type a superscript in R?
Superscript is “started” by the caret ^ character. Anything after ^ is superscript. The superscript continues until you use a * or ~ character. If you want more text as superscript, then enclose it in quotes.
What is an expression in R?
In R one can have objects of type “expression” . An expression contains one or more statements. A statement is a syntactically correct collection of tokens. Expression objects are special language objects which contain parsed but unevaluated R statements.
How do you write mathematical expressions in R?
A mathematical expression must obey the normal rules of syntax for any R expression, but it is interpreted according to very different rules than for normal R expressions….Details.
| Syntax | Meaning |
|---|---|
| x %+-% y | x plus or minus y |
| x %/% y | x divided by y |
| x %*% y | x times y |
| x %.% y | x cdot y |
How do I make an expression bold in R?
You should use function bold() inside expression() to get bold face.
How do you write subscript and superscript in R?
Subscripts and Superscripts To indicate a subscript, use the underscore _ character. To indicate a superscript, use a single caret character ^ . Note: this can be confusing, because the R Markdown language delimits superscripts with two carets. In LaTeX equations, a single caret indicates the superscript.
How do you do superscript?
To make text appear slightly above (superscript) or below (subscript) your regular text, you can use keyboard shortcuts.
- Select the character that you want to format.
- For superscript, press Ctrl, Shift, and the Plus sign (+) at the same time. For subscript, press Ctrl and the Minus sign (-) at the same time.
What is expression function?
As outlined in the Introduction, an expression function provides the effect of a small function without the formality of introducing a body. It is important to appreciate that strictly speaking an expression function is basically another form of function and not another form of expression.
What does Deparse mean in R?
The deparse function converts an R object of the expression class to an R object of the character class.
How do I type symbols in R?
Press and hold ALT then press 0, followed by 1, 7, 4. You will get ®. For MacBooks, press R while holding the Option key (ALT).
How do you write a mu hat in R?
Math inside RMarkdown If you want a μ in your document, you can just type “mu” instead and forget about the extra complication.
What is an are expression?
In certain theories of syntax, an R-expression (short for referring expression) is a category in the three-way classification of noun phrases in binding theory, the other two being anaphors and pronominals .
How to write regular expressions?
three numeric characters\\d {3} OR|a left parenthesis\\(,followed by three digits\\d {3},followed by a close parenthesis\\),in a non-capturing group (?:)
What is a regular expression pattern?
A regular expression is a pattern of text that consists of ordinary characters (for example, letters a through z) and special characters, known as metacharacters .
What is the definition of radical expression?
Definition of a Radical Expression. In mathematics, a radical expression is defined as any expression containing a radical (√) symbol. Many people mistakenly call this a ‘square root’ symbol, and many times it is used to determine the square root of a number. However, it can also be used to describe a cube root, a fourth root, or higher.
