Bug when loading the dataset "ability.cov" from the package datasets

[MainaJohnO]

The above bug pops up when the dataset 'ability.cov' is loaded from the package called "datasets"

[dannyparsons]

There are some "datasets" in the library which are not actually data frames and so we can't import them. This seems to be one of them since ability.cov is actually a list so we can't open it in R-Instat.

We might want to make the error message clearer and also explain in the Help file that this will happen for some choices.

Can you also move this issue to the main R-Instat repository instead of the Help repository?

[MainaJohnO]

@dannyparsons Okay get you. Then making the error message more clearer will be good to help other users understand it