______let’s you perform SQL queries on your R data frames.(a) sqldf(b) plyr(c) forecast(d) daplyI had been asked this question in an online interview.I'd like to ask this question from Packages in chapter Commands, Packages, Visualizing Data and Linear Regression of R Programming

______let’s you perform SQL queries on your R data frames.(a) sqldf(

1.	______let’s you perform SQL queries on your R data frames.(a) sqldf(b) plyr(c) forecast(d) daplyI had been asked this question in an online interview.I'd like to ask this question from Packages in chapter Commands, Packages, Visualizing Data and Linear Regression of R Programming
Answer» Right choice is (B) plyr To elaborate: sqldf uses SQLITE syntax. Plyr will split-apply-combine PARADIGM for R. Forecast is a generic function for forecasting from time series or time series MODELS. The function invokes particular methods which depend on the class of the first argument.

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