[R] Question about the "effects" package

Shige Song shigesong at gmail.com
Sat Nov 13 17:54:54 CET 2010

Dear John,

This is exactly what I need, thank you so much for the tip (and thank
you so much for this wonderful package too).


On Sat, Nov 13, 2010 at 10:50 AM, John Fox <jfox at mcmaster.ca> wrote:
> Dear Shige,
> As documented in ?plot.eff, the default is to plot on the scale of the
> linear predictor (the logit scale, for a logit model), which preserves the
> linearity of the model (which, I would think, is generally desirable), but
> to label the axis on the scale of the response (the probability scale). As
> is also documented, setting rescale.axis=FALSE will plot on the scale of the
> response.
> I hope this helps,
>  John
> --------------------------------
> John Fox
> Senator William McMaster
>  Professor of Social Statistics
> Department of Sociology
> McMaster University
> Hamilton, Ontario, Canada
> web: socserv.mcmaster.ca/jfox
>> -----Original Message-----
>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
> On
>> Behalf Of Shige Song
>> Sent: November-13-10 10:14 AM
>> To: r-help Help
>> Subject: [R] Question about the "effects" package
>> Dear All,
>> I am using the "effects" package to produce predicted probability from
>> a logistic regression. The graph looks really good. I soon realized
>> that the y-axis is not spaced equally. For example, in my case, the
>> distance between 0.02 and 0.04 is much greater than that between 0.06
>> and 0.08. I can guess a reason for this, but unfortunately, this
>> distorts my story. Is there a way to change this and make the y-axis
>> equally spaced?
>> Many thanks.
>> Best,
>> Shige
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