In all cases the data seems to import properly, but none of the additional functions can be run on the data. Each of these examples comes straight from the documentation so I wonder if I am missing something fundamental about my setup.
I should note that I am on the WolframAlpha Notebook Edition on a Mac running MacOS Cataline (10.15.3) in case that may be the difference between your successful runs of the provided examples and my unsuccessful runs.
I am trying to run similar functions against a csv that I have. When the example code snippets did not work against my data I worried that my data may be invalid, but since the example code snippets are not running properly against the example datasets that suggests a different underlying problem and I have no idea what is causing the issue.
I provided the example code snippets directly because it seems like anyone should be able to run them against the example datasets they already have. As you were able to successfully it does seem like my notebook is not set up correctly in some way?
I switched over to Wolfram Desktop from WolframAlpha Notebook Edition and now everything works. If anyone knows why WolframAlpha Notebook Edition doesn’t work I’d love to understand the differences better.