Choropleth maps with Highcharts and Shiny

栏目: IT技术 · 发布时间: 6年前

内容简介：We use[code]]czo2MjE6XCJsaWJyYXJ5KHNoaW55KTxiciAvPgpsaWJyYXJ5KHNoaW55ZGFzaGJvYXJkKTxiciAvPgpsaWJyYXJ5KGhpZ2hjaGFydGV7WyYqJl19cik8YnIgLz4KbGlicmFyeShjb3VudHJ5Y29kZSk8YnIgLz4KbGlicmFyeShkcGx5cik8YnIgLz4KPGJyIC8+CnNhbGVzICZsdDstIHtbJiomXX1yZWFkLmNzdihcJ3NhbGV

We use Choropleth maps to show differences in colors or shading of pre-defined regions like states or countries, which correspond to differences in quantitative values like total rainfall, average temperature, economic indicators etc

Choropleth maps with Highcharts and Shiny

In our case we will use sales of a toy making company, as quantitative value, in different countries around the world. See example with this
shiny app

Highcharter is a R wrapper for Highcharts

javascript based charting modules.

Rendering Choropleth Maps with Highcharts in Shiny

To see Highcharts/Shiny interaction, we will begin by creating basic Shiny dashboard layout: It contains a single select widget and single tab for displaying map.

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In server function, filtering and summarize data with dplyr library and create a reactive object

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Here we used library countrycode to convert long country names into one of many coding schemes. Adding new column iso3 in the summarized data with mutate function.

Passing reactive object in renderHighchart function. Customizing tooltip and sub-title content with reactive widgets.

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Dataset and shiny R file can be downloaded from

here

以上所述就是小编给大家介绍的《Choropleth maps with Highcharts and Shiny》，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对码农网的支持！