R Commander is used to . . . . . . . . in R.
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R Programming · all questionsControl Structures in R Programming
Control Structures in R Programming
practice.
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R has . . . . . . . . basic indexing operators.
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Which of the following code skips the first 20 iterations?
Options are not available for this question.
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If the function in a console is.matrix(X) returns true then X can be considered as a . . . . . . . .
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How is a Data object represented internally in R language?
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Point out the wrong statement?
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Point out the wrong statement?
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Point out the correct statement?
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. . . . . . . . function can be used to add datasets in R provided with the columns in the datasets should be the same.
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If the programmers want the output to be a data frame or a vector, then . . . . . . . . function is used.
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. . . . . . . . loop over a list and evaluate a function on each element.
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Point out the correct statement?
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Point out the correct statement?
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What will be the output of the following R code?
> printmessage <- function(x) {
+ if(x > 0)
+ print("x is greater than zero")
+ else
+ print("x is less than or equal to zero")
+ invisible(x)
+ }
> printmessage(NA)Select an option to see the answer and solution.
Point out the wrong statement?
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What is the command used to store R objects in a file?
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Which of the following R code will print "Neither"?
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. . . . . . . . function generates "n" normal random numbers based on the mean and standard deviation arguments passed to the function.
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What will be the output of the following R code?
> x <- list(a = matrix(1:4, 2, 2), b = matrix(1:6, 3, 2))
> lapply(x, function(elt) { elt[,1] })Select an option to see the answer and solution.
. . . . . . . . is the easiest method for reshaping the data before analysis.
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