GetJRowByName: GetJRowByName

In jmatrix: Read from/Write to Disk Matrices with any Data Type in a Binary Format

GetJRowByName

Description

Returns (as a R numeric vector) the requested named row from the matrix contained in a jmatrix binary file

Usage

GetJRowByName(fname, rowname)

Arguments

fname	String with the file name that contains the binary data.
rowname	The name of the row to be returned. If the matrix has no row names, or the name is not found, an empty vector is returned

Value

A numeric vector with the values of elements in the requested row

Examples

Rf <- matrix(runif(48),nrow=6)
rownames(Rf) <- c("A","B","C","D","E","F")
colnames(Rf) <- c("a","b","c","d","e","f","g","h")
tmpfile1=paste0(tempdir(),"/Rfullfloat.bin")
JWriteBin(Rf,tmpfile1,dtype="float",dmtype="full",comment="Full matrix of floats")
Rf["C",]
vf<-GetJRowByName(tmpfile1,"C")
vf

jmatrix documentation built on Oct. 9, 2023, 1:06 a.m.