[R] effects package x axis labels

Eric Berger ericjberger at gmail.com
Sat Nov 11 13:42:00 CET 2017

Hi Andras,
I have not used this package before but I did the following steps to arrive
at an answer. Hopefully both the answer is what you are looking for and
also the steps to understand how you can answer such questions yourself in
the future.
1. R is an object-oriented language, but there are several ways in which
classes are supported. In particular, methods for some classes don't reside
with the class but with extensions to "generic" functions. The 'plot'
function is such an example. So the first step is to understand the class
returned by the function allEffects.

> myObj <- allEffects(mylogit)
> class(myObj)
# efflist

2. Next look at the documentation for the extensions to 'plot' for an
'efflist' class

> ?plot.efflist

3. Search in the help documentation for 'axes' to understand what is going
on (they also supply a lot of examples at the end of the help page). A few
experiments and the following seems to do what you asked for:
> plot(allEffects(mylogit),
+                y=list(lab="Prob(xyz)")))


On Sat, Nov 11, 2017 at 2:20 AM, Andras Farkas via R-help <
r-help at r-project.org> wrote:

> Dear All,
> probably a simple enough solution but don;t seem to be able to get my head
> around it...example based on a publicly available data set:
> mydata <- read.csv("https://stats.idre.ucla.edu/stat/data/binary.csv")
> mylogit <- glm(admit ~ gre + gpa + rank, data = mydata, family =
> "binomial")
> library(effects)
> plot(allEffects(mylogit)
>      ,axes=list(y=list(lab="Prob(xyz)"))
> )
> axes=list(y=list(lab="Prob(xyz)")) changes the y axis labels for all 3
> plots... Any thoughts on how I could change the x axis labels to let say
> 'black' (plot 1), 'white' (plot 2) and 'green' (plot 3) for the 3
> respective plots produced?
> appreciate the help...
> Andras
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