我正在尝试使用ggplot绘制R中的密度图。一个细微差别是我的x轴是对数的,使用scale_x连续。以下代码效果很好:
ggplot(MELTCOMP,aes(x=value)) + geom_density(aes(fill=variable), alpha = 0.1) +
scale_fill_manual(
name = "Spend",
values = c("blue","red","green"),
labels = c("A","B","C")
) +
scale_x_log10(breaks = c(0.00001,0.0001,0.001,0.01,0.1,1,10,100),labels = percent) +
geom_vline(aes(xintercept = c(0.00001,0.0001,0.001,0.01,0.1,1,10,100)), color = "grey") +
theme(axis.ticks = element_blank(), panel.background = element_blank(), panel.grid = element_blank(),
axis.text.y = element_blank())
问题在于如何显示x轴。当我使用时:
scale_x_log10(breaks = c(0.00001,0.0001,0.001,0.01,0.1,1,10,100),label = percent)
来自scale包,我的轴有标签:
0% - 0% - 0% - 0% - 10% - 100% - ...
注意重复" 0%"。我很困惑,这可能与比例百分比函数有关,以
给出function (x)
{
x <- round_any(x, precision(x)/100)
paste0(comma(x * 100), "%")
}
尝试编码我的&#34;拥有&#34;没有舍入的函数:
NRPercent <- function(x) {
paste0(comma(x * 100), "%")
}
scale_x_log10(breaks = c(0.00001,0.0001,0.001,0.01,0.1,1,10,100),label = NRpercent)
给出:
0.001% - 0.010% - 0.100% - 1.000% - 10.000% - ...
现在我对每个数字强制使用三位小数,这通常会导致重叠。我希望的是:
0.001% - 0.01% - 0.1% - 1% - 10% - 100% - 1000%.....
但我似乎无法复制这一点。这样做的正确方法是什么?
答案 0 :(得分:0)
替换
paste0(comma(x * 100), "%")
与
paste0(sapply(x * 100, comma), "%")
问题是comma
认为其整个输入确定了一个常用的有效位数 - 但这正是你不想要的。不幸的是,功能文档没有提到这一点。相关部分可以在format
中找到,comma
来电:
数字向量使用最小十进制数进行编码 将所有元素显示为至少“数字”所需的位置 有效数字。