PsyTeachR ADS Ch. 3

chunk

A section of code in an R Markdown file

argument

A variable that provides input to a function.

logical

A data type representing TRUE or FALSE values.

geom

The geometric style in which data are displayed, such as boxplot, density, or histogram.

observation

All of the data about a single trial or question.

nominal

Categorical variables that don’t have an inherent order, such as types of animal.

double

A data type representing a real decimal number

likert

A rating scale with a small number of discrete points in order

vector

A type of data structure that collects values with the same data type, like T/F values, numbers, or strings.

character

A data type representing strings of text.

categorical

Data that can only take certain values, such as types of pet.

median

The middle number in a distribution where half of the values are larger and half are smaller.

data type

The kind of data represented by an object.

outlier

A data point that is extremely distant from most of the other data points

string

A piece of text inside of quotes.

ordinal

Discrete variables that have an inherent order, such as number of legs

integer

A data type representing whole numbers.

continuous

Data that can take on any values between other existing values.

default value

A value that a function uses for an argument if it is skipped.

tidy data

A format for data that maps the meaning onto the structure.

factor

A data type where a specific set of values are stored with labels; An explanatory variable manipulated by the experimenter

variable

A word that identifies and stores the value of some data for later use.

knit

To create an HTML, PDF, or Word document from an R Markdown (Rmd) document

numeric

A data type representing a real decimal number or integer.

R markdown

The R-specific version of markdown: a way to specify formatting, such as headers, paragraphs, lists, bolding, and links, as well as code blocks and inline code.

value

A single number or piece of data.

The end!