Can';t将表达式中的下标写在R中
我正在尝试为m/s^2中的绘图创建一个Can';t将表达式中的下标写在R中,r,label,expression,R,Label,Expression,我正在尝试为m/s^2中的绘图创建一个ylab plot(mydata[,1], mydata[,3], type = "l", xlab="Time [s]", ylab=expression("Acceleration [m/s"^{2}"]"), main="Example of signal of horizontal acceleration", cex.main = 0.9) 问题是在^符号]上标之后 用我的代码我得到了这个错误 > source('~/Dro
ylab
plot(mydata[,1], mydata[,3], type = "l", xlab="Time [s]", ylab=expression("Acceleration [m/s"^{2}"]"),
main="Example of signal of horizontal acceleration", cex.main = 0.9)
问题是在^
符号]
上标之后
用我的代码我得到了这个错误
> source('~/Dropbox/WORK/ISRProject/R_projects/plots_report.R')
Error in source("~/Dropbox/WORK/ISRProject/R_projects/plots_report.R") :
~/Dropbox/WORK/ISRProject/R_projects/plots_report.R:26:99: unexpected ']'
25:
26: plot(mydata[,1], mydata[,3], type = "l", xlab="Time [s]", ylab=expression("Acceleration [m/s"^{2}"]"
^
Try:ylab=表达式(粘贴(“加速度[”,m/s^{2},”))
par(mar=c(4,5,4,4))
x表达式(粘贴(“加速度[”,m/s^2,”)
par(mar=c(4,5,4,4))
x <- seq(1,10,.01)
plot(x, sin(pi/2*x), type = "l", xlab="Time [s]",
ylab=expression(paste("Acceleration [ ",m/s^{2}," ]")),
main="Example of signal of horizontal acceleration", cex.main = 0.9)