Is it possible to fix axis margin with ggplot2?

无人久伴 提交于 2019-11-28 11:27:19

One way would be to provide a label function that normalizes the label widths by padding them with spaces. function(label) sprintf('%15.2f', label) would pad with 15 spaces on the left and print the numeric value with 2 decimal places.

library(shiny)
library(dplyr)
library(ggplot2)

shinyApp(
  ui = bootstrapPage(
    selectInput('statistic', label='Chose a statistic', choices=c('carat', 'depth', 'table', 'price')),
    plotOutput('plot')
  ),
  server = function(input, output) {
    output$plot <- renderPlot(
      diamonds %>%
        ggplot(aes(x=color, y=get(input$statistic))) +
        scale_y_continuous(labels=function(label) sprintf('%15.2f', label)) +
        geom_bar(stat = 'sum') +
        theme(text = element_text(size=20), legend.position="none")
    )
  }
)
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