[R] plot.xmean.ordinaly vs plot() in package "rms"

[Jeff Newmiller]

Please keep the mailing list included in the thread.

I can't tell if you do understand and are just being sloppy, or if you are completely confused, because xmean.ordinaly() and plot.xmean.ordinaly() are two completely different symbols in R.

As for being "safe"... you may choose to be specific or not, but plot and plot.xmean.ordinaly are both equally "safe" to call, and being too specific can cause problems sometimes as well.

On March 17, 2019 6:40:10 AM PDT, Kim Jacobsen <kimsjacobsen using gmail.com> wrote:
>Dear Jeff,
>
>Thank you so much! So if I understand the S3 object documents
>correctly,
>the xmean.ordinaly() command and plot() command are interchangeable as
>long
>as x is an object x of class "xmean.ordinaly"? So would I be right to
>think
>that I might as well just xmean.ordinaly() to be safe?
>
>Many thanks,
>
>
>
>On Sun, 17 Mar 2019 at 02:08, Jeff Newmiller <jdnewmil using dcn.davis.ca.us>
>wrote:
>
>> Read up on S3 object orientation[1]. If you have an object x of class
>> "xmean.ordinaly" then writing
>>
>> plot(x)
>>
>> will end up invoking the plot.xmean.ordinaly function rather than the
>> plot.default function in base graphics. This is broadly true
>throughout R.
>>
>> [1] http://adv-r.had.co.nz/S3.html
>>
>> On March 16, 2019 11:03:06 AM PDT, Kim Jacobsen
><kimsjacobsen using gmail.com>
>> wrote:
>> >Would anyone be able to explain what the difference is between
>> >plot.xmean.ordinaly and plot() in the "rms" package? (for the
>purposes
>> >of
>> >testing the proportional odds assumption in ordinal models). In the
>> >package
>> >document (https://cran.r-project.org/web/packages/rms/rms.pdf) they
>> >seem
>> >both to be used interchangeably.
>> >
>> >Thank you!
>>
>> --
>> Sent from my phone. Please excuse my brevity.
>>

-- 
Sent from my phone. Please excuse my brevity.