Draw horizontal lines
Adds horizontal lines in the plot region.
yline(y, ...)
y |
Values on y axis specifying location of vertical lines. |
... |
Any ploting options for abline. |
xline, abline
world( col=3) yline( seq( -80,80,10),col=4, lty=2) xline( seq( -180,180,10),col=4,lty=2) yline( 0, lwd=2, col=4)
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.