Error in Astronauts Tidy Tuesday

[makixGRA]

Hi Cedric! I've been reproducing your code and I've faced with this error in the first summarize, with the sentence nationality = unique(nationality). The message is: "Error: Column nationality must be length 1 (a summary value), not 2".

[z3tt]

Hi Miguel, thanks for the feedback! I am not sure why it isn't working for you, for me it works. Anyway, this was some leftover code from previous trials so I have removed it now. In general, that error tells that there is 2 nationalities for at least one of the group combinations.