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Adding background text

In the previous lesson, you polished your animated bubble chart of housing price index against real GDP. In this exercise, you will continue to polish this graphic by displaying the year in the background of the animation.

Este exercício faz parte do curso

Intermediate Interactive Data Visualization with plotly in R

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Instruções do exercício

  • Add the year as background text. You should center the text at the point (200000, 450), set the font color to gray80, and set the font size to 150.
  • Use animation_slider() to hide the slider.

Exercício interativo prático

Experimente este exercício completando este código de exemplo.

# Add the year as background text and remove the slider
us_economy %>%
  plot_ly(x = ~gdp, y = ~house_price, hoverinfo = "text", text = ~state) %>%
  add_text(x = ___, y = ___, text = ___, frame = ___,
           textfont = list(color = ___(___), size = ___)) %>%
  add_markers(size = ~population, color = ~region, 
              frame = ~year, ids = ~state,
              marker = list(sizemode = "diameter", sizeref = 3)) %>%
  layout(xaxis = list(title = "Real GDP (millions USD)", type = "log"),
         yaxis = list(title = "Housing price index")) %>%
  ___(___ = ___)
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