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Space race timeline

The "first" space race began as the United States and the Soviet Union tried to become the global force in spaceflight. This race peaked on July 20, 1969, when Apollo 11, a crewed spacecraft, landed on the moon. In this exercise, your task is to create a time series plot summarizing the first space race: the race for spaceflight superiority by countries.

The plotly, crosstalk, and dplyr packages are already loaded.

Diese Übung ist Teil des Kurses

Intermediate Interactive Data Visualization with plotly in R

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Anleitung zur Übung

  • Create a new SharedData object from the state_launches data frame.
  • Create a line chart displaying the number of launches by year (launch_year) for each state (state_code).
  • Plot each line in a different color.
  • Enable selection (i.e. highlighting) of an individual state.

Interaktive Übung

Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.

# table of launches by year
state_launches <- launches %>% 
  filter(agency_type == "state") %>% 
  count(launch_year, state_code)

# create a ShareData object for plotting
shared_launches <- state_launches %>% ___(key = ___)

# Create a line chart for launches by state, with highlighting
shared_launches %>%
  ___(___, ___, ___) %>%
  ___() %>%
  ___()
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