使用ggplot2删除barplot中的白色条

Removing the white bar in barplot with ggplot2

我正在尝试删除此条形图右侧的白色条,但我不明白如何操作。 这是图表:

这是我使用的代码:

library(ggplot2)    
ggplot(data = df2, aes(x=`neighbourhood`, y="1", fill=`room_type`)                                                                    
 geom_bar(position="fill", stat="identity") +
 coord_flip() +
 scale_fill_brewer(palette = 14) +
 labs(title = "Tipi di stanze per quartiere", y = "Quantità", x = "Quartiere", fill = "Tipo di stanza")

尝试删除 y = "1"stat = "identity",如下所示:

library(ggplot2)    
    ggplot(data = df2, aes(x=`neighbourhood`, fill=`room_type`)                                                                    
     geom_bar(position="fill") +
     coord_flip() +
     scale_fill_brewer(palette = 14) +
     labs(title = "Tipi di stanze per quartiere", y = "Quantità", x = "Quartiere", fill = "Tipo di stanza")