Discuss the relevance of the commands unlist and unclass

Reference no: EM131357925

1. Discuss the relevance of the commands unlist and unclass.

2. Using the Orange dataset that monitors tree growth versus age for five orange trees, represent the dataset using the command xyplot. Then fit a linear model explaining the circumference by the age via lm. Try using the tree index as an extra covariate.

Reference no: EM131357925

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