YEASTCHR {YEAST} | R Documentation

## Mappings between probe identifiers and the chromosome numbers the genes represented by the probe ids reside

### Description

Each chromosome of a given organism is assigned a number or letter for labeling purpose. YEASTCHR maps probe ids to the numbers or letters labeling chromosomes where the genes corresponding to the probe ids reside

### Details

Since a given gene may be found in more than one chromosomes, each probe id is mapped to a character vector of length 1 or greater. Probe ids that can not be mapped to any chromosome at the time when the package was built are assinged NAs.

Mappings were based on data provided by:

Yeast Genome:http://www.yeastgenome.org/DownloadContents.shtml. Built: Yeast Genome data are built at various time intervals. Sources used were downloaded Fri Jan 7 14:56:40 2005

Package built: Fri Jan 7 16:12:38 2005

### Examples

            # Convert to a list
            xx <- as.list(YEASTCHR)
            # Remove probe ids that do not map to any CHRLOC
            xx <- xx[!is.na(xx)]
            if(length(xx) > 0){
                # Get the chromosome number for the first five probes
                xx[1:5]
                # Get the first one
                xx[[1]]
            }

[Package YEAST version 1.7.0 Index]