如何绘制不与R中的Y轴相交的abline（）？

Question

I have a location quotient plot drawn in R and want to draw a horizontal line along the plot where Y = 1. I have the code abline(h=1, col="black") but when the line is drawn, it intersects the Y-axis and crosses out my Y-axis labels.

Does anyone know how to terminate the line at the Y-axis rather than having it intersect?

Many thanks.

Answer 1

As mentioned in the comments, it looks like the parameter xpd has been changed, so one option is to change it back to FALSE , see ?par . you can control the clipping region using the clip function to further limit the range that abline and other functions plot within. This may also be affected by you plotting device (different devices can deal with clipping differently).