'How to plot interactions of predictors when the response data is ordinal in r?
I have a dataset with an ordinal target variable. I need to draw an interaction plot of one continuous and one categorical value to see if their interaction matters.
Here, I will use diamonds built-in dataset for reproducibility. Let's pretend that "cut" is a target variable. I tried to use this:
interaction.plot(diamonds$carat, diamonds$clarity, diamonds$cut)
which gives me this error:
Error in plot.window(...) : need finite 'ylim' values
It works for continuous target variables. But my data has an ordinal response variable. Should I recode my target variable for this function or is there a better way of plotting it?
The plot should look like this (https://www.statology.org/interaction-plot-r/):
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