[英]Error in customizing the x axis with scale_x_discrete() in ggplot2
I have the following figure: 我有下图:
That came from this working piece of code: 这来自于这段代码:
ggplot(plot, aes(x=variable, y=value, colour=Species, group=Species)) + geom_line() +
geom_point() + facet_grid(. ~ Treatment) + theme_bw() +
theme(axis.text.x = element_text(angle = 90, hjust = 1, vjust = 0.5), panel.grid.major = element_blank(),
panel.grid.minor = element_blank(), axis.title.y = element_blank(),
legend.text = element_text(face = "italic"), legend.key = element_blank(),legend.title=element_blank(),
legend.position="bottom", legend.background = element_rect(colour = 'black'))
However I would like to remove some of the YEARS in the x axis. 但是,我想删除x轴中的一些YEARS。 I tried to add this piece of code to the theme(...), which should do the trick, but it did not work:
我试图将这段代码添加到theme(...),这应该可以解决问题,但是没有用:
scale_x_discrete(breaks = c("1993","1994","1995","1996","1998","2000","2003","2006","2014"))
R returns the following error which I don't understand: R返回以下错误,我不明白:
Error in (function (el, elname) : "" is not a valid theme element name.
This is the str() of my data: 这是我的数据的str():
str(plot)
'data.frame': 616 obs. of 4 variables:
$ Species : Factor w/ 290 levels "Abarema jupunba",..: 21 24 32 48 54 60 62 81 117 139 ...
$ Treatment: chr "Conventional logging" "Conventional logging" "Conventional logging" "Conventional logging" ...
$ variable : Factor w/ 22 levels "1993","1994",..: 1 1 1 1 1 1 1 1 1 1 ...
$ value : num 1.34808 0.62532 0.20571 2.69961 0.00427 ...
Not sure if the information I provided is enough but I wonder if anyone has an idea why this is not working? 不知道我提供的信息是否足够,但是我想知道是否有人知道为什么它不起作用?
scale_x_discrete
应该出现在theme(...)
。
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