CODEWITHSUNDEEP
ggplot2renderinggganimate
Rosario
Rosario

Reputation: 303

gganimate returns .png files, but no animated object

I am trying to create an animation to show students how to represent data with animations. Running the below code 

library(ggplot)
library(gganimate)
library(carData)        
anim <- ggplot(mtcars, aes(mpg, disp)) +
          transition_states(gear, transition_length = 2, state_length = 1) +
          enter_fade() +
          exit_fade()

    animate(anim)

I was expecting an animation on a preview window and the creation of a gif image.

Conversely, what I am getting is 100 .png files in the working directory, but nothing else. The pictures are correct and are the frames of the animation, they are just not put together by the function. In particular I get 100 elements of which I show the first elements here: This list

  [1] "./gganim_plot0001.png" "./gganim_plot0002.png" "./gganim_plot0003.png" 
  [4] "./gganim_plot0004.png" "./gganim_plot0005.png" "./gganim_plot0006.png"
  [7] "./gganim_plot0007.png" "./gganim_plot0008.png" "./gganim_plot0009.png"
 [10] "./gganim_plot0010.png" "./gganim_plot0011.png" "./gganim_plot0012.png"...

And 

    attr(,"frame_vars")
    frame nframes progress transitioning previous_state closest_state
1       1     100     0.01         FALSE              3             3
2       2     100     0.02         FALSE              3             3
3       3     100     0.03         FALSE              3             3

and 

next_state
1            3
2            3
3            3
4            3
5            3
6            3
7            3
8            3
9            3
10           3
11           3
12           3

And finally this

 frame_source
1   C:\\Users\\rosar\\AppData\\Local\\Temp\\RtmpIR4dH3\\3b84232b4eef/gganim_plot0001.png
2   C:\\Users\\rosar\\AppData\\Local\\Temp\\RtmpIR4dH3\\3b84232b4eef/gganim_plot0002.png
3   C:\\Users\\rosar\\AppData\\Local\\Temp\\RtmpIR4dH3\\3b84232b4eef/gganim_plot0003.png

Am I doing something wrong?

Upvotes: 14

Views: 6557

Answers (1)

ThomasP85
ThomasP85

Reputation: 1702

make sure you have one of the packages required to combine images into videos. I'd advice you to use gifski:

install.packages('gifski')
install.packages('png')

and restart R

Upvotes: 23

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