IntervalQuestionStat (version 0.2.0)

nrow: Get the number of rows of an IntervalMatrix object

Description

This function allows to get the number of rows of an interval-valued matrix.

Usage

# S4 method for IntervalMatrix
nrow(x)

Value

This function returns a single numeric value indicating the number of rows of an interval-valued matrix. Therefore, this function always returns an integer object whose length is one.

Arguments

x

A matrix of interval-valued data stored as an IntervalMatrix object.

Author

José García-García

See Also

The number of rows of an IntervalMatrix object can be obtained along with the number of columns through dim() function. In an analogous way, for getting the number of columns of an IntervalMatrix object, ncol() function can be used.

Examples

## Some nrow() examples

data1 <- matrix(c(0, 1, 2, 3, 0, 3, 4, 9), 2, 4)
m1 <- IntervalMatrix(data1)
nrow(m1)
data2 <- matrix(c(1, 5, 3, 2, 6, 4, 0, 1, 3,
                  2, 3, 9, 4, 3, 7, 5, 6, 8), 3, 6)
m2 <- IntervalMatrix(data2)
nrow(m2)