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which of the following statement gives cumulative sum?

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which of the following statement gives cumulative sum? (a) cumsum(x,na=rm=TRUE) (b) cumprod(x) (c) cummax(x) (d) cummin(x) I got this question during an internship interview. This is a very interesting question from Commands in section Commands, Packages, Visualizing Data and Linear Regression of R Programming Select the correct answer from above options

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Right option is (a) cumsum(x,na=rm=TRUE) The explanation is: cummax() function returns the cumulative maxima.

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