1.Which one of the following arguments of read.table() function contain logical values?
(a) header (b) sep
(c) filename (d) None of the above
2. Which one of the following functions loads a package into the R workspace?
(a) load() (b) library()
(c) data() (d) install()
3. Which one of the following functions lists all the available datasets of a loaded package into
the R workspace?
(a) library() (b) data(datasetname)
(c) data() (d) install()
4. Which one of the following packages reads finance data from Yahoo finance?
(a) Rcurl (b) XML
(c) WDI (d) Quantmod
5. Which one of the following package reads all World Bank data?
(a) RCurl (b) XML
(c) WDI (d) Quantmod
6. Which one of the following packages is used for accessing web data?
(a) ScrapeR (b) Stat
(c) RSQLite (d) Matrix
7. Which one of the following commands converts a data frame into a matrix?
(a) as.Matrix(data frame) (b) .matrix(data frame)
(c) as.numeric(data frame) (d) None of the above
8. Which one of the following symbols is used by ‘as’ operator?
(a) * (b) .
(c) % (d) &
