Dear R users,
I am trying to draw error bars in a bar plot, I use this code (tried many
others which did not work):
install.packages()
library(gplots)
y <-c(39.02, 46.42)
se <- c(7.57,7.35)
plot <- barplot(y, beside=TRUE, col=0, ylim=c(0,47), axis.lty=1,
main="far-red", xlab="latitude", names.arg=c("56N", "68N"))
superpose.eb(plot, y, se, col="orange", lwd=2)
Then I get an error saying that it cannot find the superpose.eb function.
Why? Isn´t under gplots?
Thanks
Rosario
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