Question

Which of the following sort a dataframe by the order of the elements in B?

a.

x[rev(order(x$B)),]

b.

x[ordersort(x$B),]

c.

x[order(x$B),]

d.

x[rev(x$B),]

Posted under R Programming

Answer: (a).x[rev(order(x$B)),]

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Q. Which of the following sort a dataframe by the order of the elements in B?

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