updateAssayMetadata: Update metadata into the assay file

In ISA-tools/Risa: Converting experimental metadata from ISA-tab into Bioconductor data structures

Description

updateAssayMetadata Updates metadata into a particular assay file. See an example of use for a metabolite dataset at https://github.com/sneumann/mtbls2.

Usage

updateAssayMetadata(isa, assay.filename, col.name, values)

Arguments

isa	An isatab object, as retrieved by the readISAtab function.
assay.filename	the filename of the assay file to be augmented/modified
col.name	the name of the column of the assay file to be modified
values	the values to be added to the column of the assay file: it could be a single value, and in this case the value is repeated across the column, or it could be a list of values (whose length must match the number of rows of the assay file)

Value

The updated ISA-Tab object.

Author(s)

Alejandra Gonzalez-Beltran / Maintainer: Alejandra Gonzalez-Beltran, ISA Team <[e-mail]>

See Also

readISAtab, https://github.com/sneumann/mtbls2

Examples

 ### This example shows how to add values to the column "Derived Spectral Data File", assuming that the results are stored in the file "faahkoDSDF.txt"
 faahkoISA = readISAtab(find.package("faahKO"))
 assay.filename <- faahkoISA["assay.filenames"][[1]]
 updateAssayMetadata(faahkoISA, assay.filename,"Derived Spectral Data File","faahkoDSDF.txt" )

ISA-tools/Risa documentation built on May 8, 2019, 1:25 p.m.