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Random variables are defined using the distr package.

1

Diftr

2

Distr

3

Diestr

4

Distri

Solution:

Which of the following functions generates a warning?

1

error()

2

warning()

3

run()

4

message()

Solution:

In R, numbers are generally treated as _______ precision real numbers.

1

single

2

double

3

imaginary

4

real

Solution:

To bind a row onto an already existing matrix, the ______ function can be used.

1

Rbind

2

Sbind

3

Gbind

4

Sbnd

Solution:

which of the following is used for outputting a textual representation of an R object?

1

dget

2

dset

3

dump

4

dput

Solution:

The function that adds marginal sums to an existing table is _____.

1

par()

2

prop.table()

3

addmargins()

4

quantile()

Solution:

A single element of a character vector is referred to as _____.

1

Character String

2

String

3

Data Strings

4

Raw Data

Solution:

On which data types in R can binary operators be applied?

1

Scalars

2

Matrices

3

Vectors

4

Scalars, Matrices, and Vectors

Solution:

dplyr can be integrated with the data.table package for large fast tables.

1

data.table

2

read.table

3

table.read

4

data.read

Solution:

What is the output of the following R code?

> x <- c("a", "b", "c", "d")
> for(i in 1:4) {
print(x[i])
}

1

[1] "a"
[1] "b"
[1] "c"
[1] "d"

2

[1] "c"
[1] "b"
[1] "a"
[1] "d"

3

Error

4

[1] "d"
[1] "c"
[1] "b"
[1] "a"

R Questions Set 39:

Random variables are defined using the distr package.

Solution:

Which of the following functions generates a warning?

Solution:

In R, numbers are generally treated as _______ precision real numbers.

Solution:

To bind a row onto an already existing matrix, the ______ function can be used.

Solution:

which of the following is used for outputting a textual representation of an R object?

Solution:

The function that adds marginal sums to an existing table is _____.

Solution:

A single element of a character vector is referred to as _____.

Solution:

On which data types in R can binary operators be applied?

Solution:

dplyr can be integrated with the data.table package for large fast tables.

Solution:

What is the output of the following R code?

> x <- c("a", "b", "c", "d")
> for(i in 1:4) {
print(x[i])
}

Solution:

Related Question Sets:

Related Topics:

R Questions Set 39:

Random variables are defined using the distr package.

Solution:

Which of the following functions generates a warning?

Solution:

In R, numbers are generally treated as _______ precision real numbers.

Solution:

To bind a row onto an already existing matrix, the ______ function can be used.

Solution:

which of the following is used for outputting a textual representation of an R object?

Solution:

The function that adds marginal sums to an existing table is _____.

Solution:

A single element of a character vector is referred to as _____.

Solution:

On which data types in R can binary operators be applied?

Solution:

dplyr can be integrated with the data.table package for large fast tables.

Solution:

What is the output of the following R code? > x <- c("a", "b", "c", "d") > for(i in 1:4) { print(x[i]) }

Solution:

Related Question Sets:

Related Topics:

What is the output of the following R code?

> x <- c("a", "b", "c", "d")
> for(i in 1:4) {
print(x[i])
}