COPD_131 {MSPrep} | R Documentation

## Example mass spectrometry dataset

### Description

Data contains LC-MS metabolite analysis for samples from 131 subjects with 3 technical replicates per subject. The first three columns indicate "Mass" (mass-to-charge ratio), "Retention.Time", and "Compound.Name" for the 662 unique metabolites observed in the samples. The remaining columns indicate abundance for each of the 662 mass/retention-time combination for each subject/replicate combination.

### Usage

    data(COPD_131)

### Format

Data frame containing 662 observations of 396 samples

Mass

  Mass-to-charge ratio

Retention.Time

  Retention-time

Compound.Name

  Compound name for each mass/retention time combination

X10062C_1

  The remaining columns indicate metabolite abundances found in each Subject/Replicate combination. Each column begins with an 'X', followed by the subject ID, and then the replicate (1, 2, or 3), each separated by '_'.

### Source

https://www.metabolomicsworkbench.org/data/DRCCMetadata.php?Mode=Project&ProjectID=PR000438

### References

Nichole Reisdorph (NaN). Untargeted LC-MS metabolomics analysis of human COPD plasma, HILIC & C18, metabolomics_workbench, V1.

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR000438. The data can be accessed directly via its Project DOI: 10.21228/M8FC7C. This work is supported by NIH grant, U2C-DK119886.

### Examples

    data(COPD_131)

[Package MSPrep version 1.4.0 Index]