iemisc (version 0.9.9)

size: Size of R objects (GNU Octave/MATLAB compatible)

Description

Provides the dimensions of R objects in a manner compatible with GNU Octave/MATLAB. This function is the same as size, except this size can find the size of character vectors too. Some documentation from size.

Usage

size(x, k)

Value

"Return the number of rows and columns of the object x as a numeric vector. If given a second argument, size will return the size of the corresponding dimension." Source: Eaton.

Arguments

x

An R object (array, vector, or matrix)

k

integer specifying a particular dimension

Author

Hans Werner Borchers (pracma size), Irucka Embry

References

John W. Eaton, David Bateman, and Søren Hauberg (2009). GNU Octave version 3.0.1 manual: a high-level interactive language for numerical computations. CreateSpace Independent Publishing Platform. ISBN 1441413006, URL http://www.gnu.org/software/octave/doc/interpreter/. Page 42.

See Also

dim, size

Examples

library("iemisc")
library(gsubfn)


# Examples from GNU Octave size
object1 <- matrix(c(1, 2, 3, 4, 5, 6), nrow = 3, ncol = 2, byrow = TRUE)
size(object1)


list[nr, nc] <- size(matrix(c(1, 2, 3, 4, 5, 6), nrow = 3, ncol = 2,
                byrow = TRUE))

size(matrix(c(1, 2, 3, 4, 5, 6), nrow = 3, ncol = 2, byrow = TRUE), 2)

# Examples from pracma size
size(1:8)

size(matrix(1:8, 2, 4))

size(matrix(1:8, 2, 4), 2)

size(matrix(1:8, 2, 4), 3)

ss <- "object"
size(ss)


if (FALSE) {
# check against GNU Octave
library(RcppOctave) # requires Octave (>= 3.2.4) and its development files
o_source(text = "
\
object1 = [1, 2; 3, 4; 5, 6];
size(object1)

[nr, nc] = size([1, 2; 3, 4; 5, 6])

size([1, 2; 3, 4; 5, 6], 2)

\
size(1:8)

object2 = [1 3 5 7; 2 4 6 8];

size(object2)

size(object2, 2)

size(object2, 3)

ss = 'object';
size(ss)
")
}