gganimate_tut.Rmd

---
title: "R Notebook"
output: html_notebook
---

# Prerequisities

```{r}
library(ggplot2)
library(gganimate)
theme_set(theme_bw())
```

# Demo dataset

```{r}
library(gapminder)
head(gapminder)
```

# Static plot

```{r}
p <- ggplot(
  gapminder, 
  aes(x = gdpPercap, y=lifeExp, size = pop, colour = country)
  ) +
  geom_point(show.legend = FALSE, alpha = 0.7) +
  scale_color_viridis_d() +
  scale_size(range = c(2, 12)) +
  scale_x_log10() +
  labs(x = "GDP per capita", y = "Life expectancy")

p
```

# Transition through distinc states in time

```{r}
p + transition_time(year) +
  labs(title = "Year: {frame_time}")
```

# Create facets by continent:

```{r}
p + facet_wrap(~continent) +
  transition_time(year) +
  labs(title = "Year: {frame_time}")
```

# Let the view follow the data in each frame

```{r}
p + transition_time(year) +
  labs(title = "Year: {frame_time}") +
  view_follow(fixed_y = TRUE)
```