[R] Manually inserting an extra tick on the y axis in ggplot2

John Kane jrkrideau at inbox.com
Fri Mar 25 22:15:33 CET 2016

You might abe able to do it by using scale_y_continuous() but it would be a great help to see some (minimal) code and some sample data.

Please have a look at
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example and/or http://adv-r.had.co.nz/Reproducibility.html

Re  scale_y_continuous() have a look at http://stackoverflow.com/questions/22228696/specify-tick-marks-on-y-axis-ggplot2 which might suggest some approaches.

John Kane
Kingston ON Canada

> -----Original Message-----
> From: kmnanus at gmail.com
> Sent: Fri, 25 Mar 2016 10:07:10 -0400
> To: r-help at r-project.org
> Subject: [R] Manually inserting an extra tick on the y axis in ggplot2
> I have called geom_hline to insert a horizontal line on the y axis of a
> plot at a given point.
> How can I insert the corresponding tick and its value on the y axis
> itself?
> Ken
> kmnanus at gmail.com
> 914-450-0816 (tel)
> 347-730-4813 (fax)
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> and provide commented, minimal, self-contained, reproducible code.

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