R4DS Ch. 12

geom_line()

{ggplot2}

add layer of data lines to plot

unite()

{tidyr}

combine multiple columns into single column

pivot_wider()

{tidyr}

pivot data frame to be wider

geom_point()

{ggplot2}

add layer of points to plot

c()

{base}

create vector of numbers, characters, etc.

count()

{dplyr}

count unique values of variables

str_replace()

{stringr}

replace first matched pattern in a string

pivot_longer()

{tidyr}

pivot data frame to be longer

aes()

{ggplot2}

create aesthetic mappings between data and plot

ggplot()

{ggplot2}

create a plotting area

complete()

{tidyr}

complete a data frame with missing combinations of data

fill()

{tidyr}

fill in missing values

mutate()

{dplyr}

create or modify data columns

separate()

{tidyr}

split single column into multiple columns

tibble()

{tibble}

create tibble

select()

{dplyr}

keep specified columns

tribble()

{tibble}

create row-wise tibble

The end!