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Which of the following determine the least-squares regression line?

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Which of the following determine the least-squares regression line?

(a) histo()

(b) lm

(c) barlm()

(d) col.max(x)

I got this question during an interview for a job.

My question is taken from Visualizing Data topic in portion Commands, Packages, Visualizing Data and Linear Regression of R Programming

1 Answer

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Best answer
Right option is (b) lm

For explanation I would say: lm calls the lower level functions lm.fit.

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