[R] issue with plot (type="h")

[Sundar Dorai-Raj]

Gasper Cankar wrote:
> Hello everyone.
> 
> For reasons too long to explain I wanted to do plots similar to histograms with plot(type="h"). 
> I ran into a problem - if I set line width too high, histogram isn't accurate anymore.
> 
> For example:
> 
> par(lend=2)
> plot(c(2,4,3,2),ylim=c(0,5), type="h")
> abline(h=3)
> 
> Column 3 appears just as high as it should. But if I do
> 
> par(lend=2)
> plot(c(2,4,3,2),ylim=c(0,5), type="h",lwd=100)
> abline(h=3)
> 
> then columns become too high. Can I correct the problem or is there another way to display my data correctly?
> 

Try ?barplot instead:

bp <- barplot(c(2, 4, 3, 2), ylim = c(0, 5))
axis(side = 1, at = bp, labels = 1:4)
abline(h = 3)
box()

--sundar