[英]Special symbols in ggvis
I'm making a fairly typical plot of geochemistry profiles for which I need to use a subscript and a greek symbol in the x-axis 我正在绘制一个相当典型的地球化学剖面图,为此我需要在x轴上使用下标和希腊符号
It should read CH4 (umol) where the 4 is subscript and the u is the greek symbol mu 它应显示为CH4(umol),其中4是下标,而u是希腊符号mu
ggvis code: ggvis代码:
ch4 %>% ggvis(~ch4_umol, ~depth_cm, fill=~Core, stroke=~Core) %>%
layer_lines(fillOpacity=0) %>% scale_numeric('y', reverse=T) %>%
add_axis("y", title = "Depth (cm)") %>%
add_axis('x', orient='top', title="CH[4] ("mu "mol)")
Side-note: I know that I can make the proper labels in ggplot2 but I can't put the x-axis on top in ggplot2 旁注:我知道我可以在ggplot2中制作适当的标签,但不能将x轴放在ggplot2的顶部
library(ggvis)
title <- "CH\u2084 (\u03BC mol)"
mtcars %>%
ggvis(~wt, ~mpg) %>%
layer_points() %>%
add_axis('x', orient = 'top', title = title)
In case you need more special characters in the future, look them up here and look for "C/C++/Java source code". 如果将来需要更多特殊字符,请在此处查找并查找“ C / C ++ / Java源代码”。
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