print.matrix {base}R Documentation

Print Matrices

Description

Pseudo-method for the print generic. Especially useful with the right argument which does not (yet) exist for print.default.

Usage

print.matrix(x, rowlab=character(0), collab=character(0),
             quote=TRUE, right=FALSE)

Arguments

x numeric or character matrix.
rowlab,collab (optional) character vectors giving row or column names respectively. By default, these are taken from dimnames(x).
quote logical; if TRUE and x is of mode character, quotes ("..") are used.
right if TRUE and x is of mode character, the output columns are right-justified.

Details

print.matrix and print.default both print matrices, and each has at least an optional argument that the other lacks. Also, both directly dispatch into .Internal code directly instead of relying on each other. This mainly stems from historic compatibility and similar reasons should be changed in the future.

prmatrix is currently just an .Alias for print.matrix.

Value

Invisibly returns its argument, x.

See Also

print.default, and other print methods.

Examples

print.matrix(m6 <- diag(6), row = rep("",6), coll=rep("",6))

chm <- matrix(scan(file.path(system.file("help", pkg="eda"),"AnIndex"),
what=""),,2, byrow=T)
chm  #-> print.default(.)  = `same' as  print.matrix(chm)
print.matrix(chm, collab = paste("Column",1:3), right=TRUE, quote=FALSE)
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