writeSDML: Write Data in StatDataML Format

Description

Write data in StatDataML format, either in a file or to standard output

Usage

writeSDML(x, file = "", textdata = NULL, dtd = NULL, sep = " 
",
na.string = "NA", null.string = "NULL", posinf.string = "+Inf",
neginf.string = "-Inf", nan.string = "NaN", true = "1", false = "0",
title = deparse(substitute(x)), source = "R", version = " ",
date = NULL, comment = " ", properties = NULL)

Arguments

x: a data object.
file: the name of the file to write to.
textdata: save array elements as textdata blocks instead of data? Numeric arrays are by default (textdata=NULL) saved in textdata blocks, character arrays in data blocks.
dtd: location of the StatDataML DTD.
sep: field separator for textdata blocks.
na.string: the string which should be interpreted as NA element.
null.string: the string which should be interpreted as NULL string.
posinf.string: the string which should be interpreted as +Inf.
neginf.string: the string which should be interpreted as -Inf.
nan.string: the string which should be interpreted as NaN.
true, false: the strings which should be interpreted as TRUE/FALSE.
title: the title of the data being saved (string).
source: the source of the data being saved (string).
version: the version of the data being saved (string).
comment: a free form commentary for the data being saved (string).
date: a free form date element, date() by default.
properties: an arbitrary list or array.

Author

David.Meyer@R-Project.org

Details

info attributes of arrays are used for the info attributes of the e / ce / na tags in StatDataML. For further details on the StatDataML format see the proposal.

Examples

Run this code

A <- matrix(1:16, ncol=4)
rownames(A) <- paste("row", 1:4, sep="")
colnames(A) <- paste("col", 1:4, sep="")

# export to temporary file
tmp_file1 = tempfile()
writeSDML(A, tmp_file1)

I <- letters[1:16]
attr(A, "info") <- I

# export to temporary file
tmp_file2 = tempfile()
writeSDML(A, tmp_file2, textdata = FALSE)

# cleanup
unlink(tmp_file1)
unlink(tmp_file2)