如何在从他们的网站上获取的以下情节示例中隐藏颜色条？
df <- read.csv('https://raw.githubusercontent.com/plotly/datasets/master/2014_world_gdp_with_codes.csv')
# light grey boundaries
l <- list(color = toRGB("grey"), width = 0.5)
# specify map projection/options
g <- list(
showframe = FALSE,
showcoastlines = FALSE,
projection = list(type = 'Mercator')
)
plot_ly(df, z = GDP..BILLIONS., text = COUNTRY, locations = CODE, type = 'choropleth',
color = GDP..BILLIONS., colors = 'Blues', marker = list(line = l),
colorbar = list(tickprefix = '$', title = 'GDP Billions US$'),
filename="r-docs/world-choropleth") %>%
layout(title = '2014 Global GDP<br>Source:<a href="https://www.cia.gov/library/publications/the-world-factbook/fields/2195.html">CIA World Factbook</a>',
geo = g)
该图参考没有提供答案：https://plot.ly/r/reference/#colorbar https://plot.ly/r/reference/#colorbar。我可以通过编辑图形来隐藏颜色栏，但我想在 R 代码中控制它。
另一种选择是使用%>% hide_colorbar()
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