peak_data {GCalignR}

Gas-chromatography data for Antarctic Fur Seals (Arctocephalus gazella)

Description

This is an example of a typical gas-chromatography output file, listing a number of peaks with their respective retention times and abundance measures. Peaks were detected using Xcalibur 2.0.5 (Thermo Fisher Scientific). The data consists of 41 mother-pup pairs of two different colonies from Bird Island, South Georgia. In addition two blanks (i.e. negative controls) are included.

Format

A list of data.frame's. Each data.frame contains gas-chromatography peak data of a single sample. The variables within each data.frame are: "time" (peak retention time) and "area" (integral of the peak curve). Each list element i.e. each data.frameis named with the unique sample ID.

Source

http://www.pnas.org/content/suppl/2015/08/05/1506076112.DCSupplemental/pnas.1506076112.sd02.xlsx

References

Stoffel, M.A.; Caspers, B.A.; Forcada, J.; Giannakara, A.; Baier, M.; Eberhart-Phillips, L.; Mueller, C.; Hoffman, J.I. (2015): Chemical fingerprints encode mother-offspring similarity, colony membership, relatedness, and genetic quality in fur seals. In: Proceedings of the National Academy of Sciences of the United States of America 112 (36), S. E5005-12. DOI: 10.1073/pnas.1506076112.