readTargets {limma} | R Documentation |
Read a RNA targets file into dataframe.
readTargets(file="Targets.txt", path=NULL, sep="\t", row.names="FileName")
file |
character string giving the name of the targets file. |
path |
character string giving the directory containing the file. Can be omitted if the file is in the current working irectory. |
sep |
the field separator character |
row.names |
character string giving header of column from which to obtain row names |
The targets file is a text file with rows corresponding to microarrays and columns Cy3
and Cy5
specifying which RNA samples are hybridized to which channel of each microarray.
Other columns are optional.
Data frame usually including columns
Cy3 |
character vector giving names of RNA samples |
Cy5 |
character vector giving names of RNA samples |
Character columns are not converted to factors.
Gordon Smyth
An overview of LIMMA functions for reading data is given in 3.ReadingData.