将gganimate动画另存为mp4文件

Question

是否可以将用ffmmeg_renderer或av_renderer制作的电影另存为文件？我总是将主题作为数据嵌入到html文件中。

Answer 1

由于您没有provide a reproducible example：

p <- ggplot(airquality, aes(Day, Temp)) + 
    geom_line(size = 2, colour = 'steelblue') + 
    transition_states(Month, 4, 1) + 
    shadow_mark(size = 1, colour = 'grey')
a <- animate(p, renderer = ffmpeg_renderer())

anim_save("animation.mp4", a)

Answer 2

使用@Roman中的示例，我将改用library("av")：

p <- ggplot(airquality, aes(Day, Temp)) + 
    geom_line(size = 2, colour = 'steelblue') + 
    transition_states(Month, 4, 1) + 
    shadow_mark(size = 1, colour = 'grey')

b <- animate(p, duration = 20, fps = 20, renderer = av_renderer())
anim_save("output.mp4", b)