问题描述
我使用R和ggplot绘制了一些数据的散点图,除了y轴上的数字出现在计算机样式指数格式中,例如4e + 05,5e + 05等等之外,一切都很好。这显然是不可接受的,所以我想让它显示为500,000,400,000等等。获得适当的指数记法也是可以接受的。
I'm using R and ggplot to draw a scatterplot of some data, all is fine except that the numbers on the y-axis are coming out with computer style exponent formatting, i.e. 4e+05, 5e+05, etc. This is obviously unacceptable, so I want to get it to display them as 500,000, 400,000, and so on. Getting a proper exponent notation would also be acceptable.
剧情的代码如下:
The code for the plot is as follows:
p <- ggplot(valids, aes(x=Test, y=Values)) +
geom_point(position="jitter") +
facet_grid(. ~ Facet) +
scale_y_continuous(name="Fluorescent intensity/arbitrary units") +
scale_x_discrete(name="Test repeat") +
stat_summary(fun.ymin=median, fun.ymax=median, fun.y=median, geom="crossbar")
非常感谢任何帮助。
推荐答案
我还发现了另一种做法,在轴上给出了正确的'x10(上标)5'符号。我在这里发布它,希望对一些人有用。我从,所以我声称不会赞扬它,这正确地转到Brian Diggs
I also found another way of doing this that gives proper 'x10(superscript)5' notation on the axes. I'm posting it here in the hope it might be useful to some. I got the code from here so I claim no credit for it, that rightly goes to Brian Diggs.
fancy_scientific <- function(l) {
# turn in to character string in scientific notation
l <- format(l, scientific = TRUE)
# quote the part before the exponent to keep all the digits
l <- gsub("^(.*)e", "'\\1'e", l)
# turn the 'e+' into plotmath format
l <- gsub("e", "%*%10^", l)
# return this as an expression
parse(text=l)
}
其中您可以使用作为
Which you can then use as
ggplot(data=df, aes(x=x, y=y)) +
geom_point() +
scale_y_continuous(labels=fancy_scientific)
这篇关于如何使用ggplot更改坐标轴上的数字格式?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!