readLC480SampleInfo: Read sample information data of a qPCR experiment from Light...

Description Usage Arguments Details Value Author(s) References See Also Examples

Description

Reads sample information data of a qPCR experiment from Light Cycler 480 which is in txt-file and uses the data to populate an object of Class "AnnotatedDataFrame".

Usage

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read.LC480SampleInfo(file, removeEmptyCols = TRUE,
                     header = TRUE, sep = "\t", quote = "\"", 
                     dec = ".",fill = TRUE, comment.char = "",
                     skip = 0)

Arguments

file

the name of the file to be read in.

removeEmptyCols

a logical value which indicates whether the empty column(s) should be removed or not.

header

a logical value indicating whether the file contains the names of the variables as its first line. If missing, the value is determined from the file format: header is set to TRUE if and only if the first row contains one fewer field than the number of columns.

sep

the field separator character. Values on each line of the file are separated by this character. If sep = "" (the default for read.table) the separator is ‘white space’, that is one or more spaces, tabs, newlines or carriage returns.

quote

the set of quoting characters. To disable quoting altogether, use quote = "". See scan for the behaviour on quotes embedded in quotes. Quoting is only considered for columns read as character, which is all of them unless colClasses is specified.

dec

the character used in the file for decimal points.

fill

logical. If TRUE then in case the rows have unequal length, blank fields are implicitly added. See read.table.

comment.char

character: a character vector of length one containing a single character or an empty string. Use "" to turn off the interpretation of comments altogether.

skip

integer: the number of lines of the data file to skip before beginning to read data.

Details

Allows the user to read in sample information data of a qPCR experiment from Light Cycler 480 which is in txt-file.

Value

Object of class "AnnotatedDataFrame".

Author(s)

Nor Izayu Abdul Rahman, Matthias Kohl Matthias.Kohl@stamats.de

References

Perkins, JR, Dawes, JM, McMahon, SB, Bennett, DL, Orengo, C, Kohl, M (2012). ReadqPCR and NormqPCR: R packages for the reading, quality checking and normalisation of RT-qPCR quantification cycle (Cq) data. BMC Genomics, 13, 1:296.

See Also

read.table

read.LC480 for reading in the qPCR data from Light Cycler and produce an object of Class "CyclesSet".

merge for merging the phenodata from read.LC480 and read.LC480SampleInfo and produce an object of Class "CyclesSet".

read.qPCR and read.taqman for reading in the RT-qPCR data.

AnnotatedDataFrame-class

Examples

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  path <- system.file("exData", package = "ReadqPCR")
  LC480.SamInfo <- file.path(path, "LC480_Example_SampleInfo.txt")

  # Read in the sample information data from file "LC480_Example_SampleInfo.txt". 
  samInfo <- read.LC480SampleInfo(LC480.SamInfo)

jimrperkins/ReadqPCR documentation built on March 30, 2020, 10:23 p.m.