[R] ggplot / second axis / just a notation problem

[Eric Berger]

Hi John,
Why not just try both and see which one makes sense?


On Tue, Oct 17, 2017 at 12:24 PM, John <miaojpm at gmail.com> wrote:

> Hi,
>
>    I have a question on ggplot2 with the second axis, but I don't think one
> needs to know ggplot2 package in order to answer this question.
>
>    In this example,
> https://rpubs.com/MarkusLoew/226759
>    since the transformation of the second axis is given by y1=y2*5,
> #####
>    p <- p + scale_y_continuous(sec.axis = sec_axis(~.*5, name = "Relative
> humidity [%]"))
> #####
>    Note  "~.*5"
>    What can I do if the transformation is given by y1=y2-3 or y1=y2/5?
>    Should I write "~.-3" or "~./5"?
>
>    Thanks,
>
> John
>
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>
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