[R] Survey Data - comparing multiple groups

[Abby Spurdle]

> I have ran Kruskal Wallis as follows but get the following error:
> svyranktest(CARB ~ group, df, test=c("KruskalWallis"))

>From the survey package, I assume.
And df is a data frame, I also assume.
(Complete self-contained examples are good).

I checked the documentation.
The second argument is not a data frame.

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