OutlierD: An R package for outlier detection using quantile regression on mass spectrometry data

Hyungjun Cho, Yang Jin Kim, Hee Jung Jung, Sang Won Lee, Jae Won Lee

    Research output: Contribution to journalArticlepeer-review

    25 Citations (Scopus)

    Abstract

    It is important to preprocess high-throughput data generated from mass spectrometry experiments in order to obtain a successful proteomics analysis. Outlier detection is an important preprocessing step. A naive outlier detection approach may miss many true outliers and instead select many non-outliers because of the heterogeneity of the variability observed commonly in high-throughput data. Because of this issue, we developed a outlier detection software program accounting for the heterogeneous variability by utilizing linear, non-linear and non-parametric quantile regression techniques. Our program was developed using the R computer language. As a consequence, it can be used interactively and conveniently in the R environment.

    Original languageEnglish
    Pages (from-to)882-884
    Number of pages3
    JournalBioinformatics
    Volume24
    Issue number6
    DOIs
    Publication statusPublished - 2008 Mar

    Bibliographical note

    Funding Information:
    This work was supported by the Korea Research Foundation Grant (R14-2003-002-01002-0) for J.W. Lee. It was also supported by the Korea Research Foundation Grant (KRF-2007-331-C00065) for H. Cho and by 21C Frontier Project for Functional Proteomics (FPR05A1-400) for S.W. Lee.

    ASJC Scopus subject areas

    • Statistics and Probability
    • Biochemistry
    • Molecular Biology
    • Computer Science Applications
    • Computational Theory and Mathematics
    • Computational Mathematics

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