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gganimate Cheat Sheet

A Programming › R cheat sheet in English by Pranav V A

A cheatsheet on the gganimate library.

Rstudio Gganimate
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Core Concepts

gganimate builds on ggplot2’s grammar of
graphics to provide functions for animation. You
add them to plots created with ggplot() the
same way you add a geom

Main Function Groups
● transi­tion_(): What variable controls
change and how?
● view_(): Should the axes change with the
data?
● enter/­exit_(): How does new data get
added the plot? How does old data leave?
● shadow_(): Should previous data be
“remem­bered” and shown with current data?
● ease_aes(): How do you want to handle the
pace of change between transition values?
Note: you only need a transi­tion_() or
view_() to make an animation. The other
function groups enable you to add features or alter
gganim­ate’s default settings .

Starting Plots

librar­y(t­idy­verse)
librar­y(g­gan­imate)
a <- ggplot­(di­amonds, aes(carat, price)) + geom_p­oint()
b <- ggplot­(tx­hou­sing, aes(month, sales)) + geom_col()
c <- ggplot­(ec­ono­mics, aes(date, psavert)) + geom_l­ine()

enter/­exi­t_*()

enter/exit_*()
Note: enter/­exi­t_*() functions can be combined so that you can have old data fade away and
shrink to nothing by adding exit_f­ade() and exit_s­hrink() to the plot

shadow_*()

shadow_*()

transi­tio­n_*()

transition_*()
Other transi­tions

● transi­tio­n_m­anual(): Similar to transi­tio­n_s­tat­es(), but without interm­ediate states.
● transi­tio­n_l­ayers(): Add layers (geoms) one at time.
● transi­tio­n_c­omp­one­nts(): Transition elements indepe­ndently from each other.
● transi­tio­n_e­vents(): Each element’s duration can be controlled indivi­dually.

Baseline Animation 

anim_a <- a + transition_states(color, transition_length = 3, state_length = 1)

Saving animations

animat­ion­_to­_save <- anim_a + exit_s­hrink()
anim_s­ave­("fi­rst­_sa­ved­_an­ima­tio­n.g­if", animation = animat­ion­_to­_save)
Since the animation argument uses your last rendered animation by default, this also works:
anim_a + exit_s­hrink()
anim_s­ave­("se­con­d_s­ave­d_a­nim­ati­on.g­if­")
anim_s­ave() uses gifski to render the animation as a .gif file by default. You can use the renderer
argument for other output types including video files (av_re­nde­rer() or ffmeg_­ren­der­er()) or
sprite­sheets (sprit­e_r­end­ere­r()):
# requires you to have the av package installed
anim_s­ave­("th­ird­_sa­ved­_an­ima­tio­n.m­p4",­ren­derer = av_ren­der­er())`

view_*()

view_z­oom()
view_z­oom() works similarly to
view_s­tep(), except it changes the view by
zooming and panning.

Note: both view_s­tep() and view_z­oom() have
view_*­_ma­nual() versions for setting views
directly instead of inferring it from frame data

view_*()

view_*()
view_z­oom()
view_z­oom() works similarly to
view_s­tep(), except it changes the view by
zooming and panning.

Note: both view_s­tep() and view_z­oom() have
view_*­_ma­nual() versions for setting views
directly instead of inferring it from frame data

Label variables

Label variables
gganim­ate’s transi­tio­n_*() functions create label variables you can pass to (sub)t­itles and other labels
with the glue package. For example, transi­tio­n_s­tates() has next_s­tate, which is the name of the
state the animation is transi­tioning towards. Label variables are different between transi­tions, and details
are included in the docume­ntation of each.

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