PsyTeachR DSRR Ch. 4

character

A data type representing strings of text.

object

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

tabular data

Data in a rectangular table format, where each row has an entry for each column.

csv

Comma-separated variable: a file type for representing data where each variable is separated from the next by a comma.

double

A data type representing a real decimal number

numeric

A data type representing a real decimal number or integer.

operator

A symbol that performs a mathematical operation, such as +, -, *, /

vector

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

vectorized

An operator or function that acts on each element in a vector

deviation score

A score minus the mean

data type

The kind of data represented by an object.

tidyverse

A set of R packages that help you create and work with tidy data

panes

RStudio is arranged with four window “panes”.

integer

A data type representing whole numbers.

extract operator

A symbol used to get values from a container object, such as [, [[, or $

base R

The set of R functions that come with a basic installation of R, before you add external packages

tidy data

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

list

A container data type that allows items with different data types to be grouped together.

factor

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

coercion

Changing the data type of values in a vector to a single compatible type.

logical

A data type representing TRUE or FALSE values.

global environment

The interactive workspace where your script runs

extension

The end part of a file name that tells you what type of file it is (e.g., .R or .Rmd).

escape

Include special characters like ” inside of a string by prefacing them with a backslash.

The end!