r - 如何将回归线添加到 gganimate 图中？

Question

我想在我的 gganimate 图中添加一条回归线。如果没有回归线，gganimate 绘图按预期工作，当我将 geom_smooth 命令添加到常规绘图时，它工作正常。当我尝试将回归线添加到 gganimate 图中时，我只会收到错误消息。

g <- ggplot(pdata, aes(x = ole, y = rsv)) + 
        geom_point(aes(color = region)) + 
        geom_smooth(aes(group = region, color = region), se = FALSE)

anim <- g + transition_states(region, transition_length = 3, state_length = 5) 
anim

我收到错误消息：

 geom_smooth()` using method = 'loess' and formula 'y ~ x'
`geom_smooth()` using method = 'loess' and formula 'y ~ x'
Error in transform_path(all_frames, next_state, ease, params$transition_length[i],  : 
  transformr is required to tween paths and lines

标签： rggplot2data-visualizationgganimate