[R] ggplot error of "`data` must be a data frame, or other object coercible by `fortify()`, not an S3 object with class rxlsx"

[Andrew Simmons]

The class of 'eth' must be incorrect. You could try 'as.data.frame' or
possibly 'as.list' to convert 'eth' to an acceptable form.

On Thu, Aug 26, 2021, 11:53 Kai Yang via R-help <r-help using r-project.org>
wrote:

> Hello List,
> I got an error message when I submit the code below
> ggplot(eth, aes(ymax=ymax, ymin=ymin, xmax=4, xmin=3, fill=ethnicity)) +
> geom_rect() +  coord_polar(theta="y")  +  xlim(c(2, 4)   )
>
> Error: `data` must be a data frame, or other object coercible by
> `fortify()`, not an S3 object with class rxlsx
>
>
> I checked the syntax. But I can  not find any error on my code. Can you
> help me to find where is the problem?
>
> Thanks
>
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>
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