r standard deviation
> duration = faithful$eruptions # the eruption durations
> sd(duration) # apply the sd function
[1] 1.1414r standard deviation
> duration = faithful$eruptions # the eruption durations
> sd(duration) # apply the sd function
[1] 1.1414how to plot mean and standard deviation in r
foo <- data.frame(color=c("black","red","orange"),
mean.temp=c(37.93431,37.01423,36.61345),
sd=c(2.267125,1.852052,1.339032))
plot(1:3,foo$mean.temp,pch=19,xlab="",ylab="",xaxt="n",xlim=c(0.5,3.5),
ylim=c(min(foo$mean.temp-foo$sd),max((foo$mean.temp+foo$sd))))Copyright © 2021 Codeinu
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