write.snp.matrix {snpMatrix}R Documentation

Write a snp.matrix object as a text file

Description

This function is closely modelled on write.table. It writes an object of class snp.matrix as a text file with one line for each row of the matrix. Genotpyes are written in numerical form, i.e. as 0, 1 or 2 (where 1 denotes heterozygous).

Usage

write.snp.matrix(x, file, append = FALSE, quote = TRUE, sep = " ", eol = "\n", na = "NA", row.names = TRUE, col.names = TRUE)

Arguments

x The object to be written
file The name of the output file
append If TRUE, the output is appended to the designated file. Otherwise a new file is opened
quote If TRUE, row and column names will be enclosed in quotes
sep The string separating entries within a line
eol The string terminating each line
na The string written for missing genotypes
row.names If TRUE, each row will commence with the row name
col.names If TRUE, the first line will contain all the column names

Value

A numeric vector giving the dimensions of the matrix written

Author(s)

David Clayton david.clayton@cimr.cam.ac.uk

See Also

write.table, snp.matrix-class, X.snp.matrix-class


[Package snpMatrix version 1.6.1 Index]