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Use the “?swiss” command to show the help file for the built-in “swiss” data set

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Use the “?swiss” command to show the help file for the built-in “swiss” data set. Describe in your own words what this data set contains. Speculate, based on the descriptions of the six variables, how a principal components analysis might break down these vari? ables into different groups. Show the output of the str(swiss) command and describe how this confirms the information in the help file.