R help - Apr 2019 - Helping for approrpriate test

Dear All,
I have in field and collect some data and i need your help for the appropriate
test to analyze the data.
Indeed, i collected data from 200 farmers. From cluster analysis, i found four
type or clusters of farmers. During the survey, i asked all the farmers to rank
the different constraints from their activity from 1 to 4 (1= low importance and
4 = very important constraints). I would like to make a comparaison among these
four clusters or groups to know if there is any difference between each cluster
belong the differents constraints.?
There is four (4) groups of farmers and 16 constraints. All the 200 farmers
ranked all the constraints.

Thanks,
Bienvenue
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