pos {metapone} | R Documentation

## Example positive mode data from the Dorm Room Inhalation to Vehicle Emission (DRIVE) study

### Description

The data is from the DRIVE study. It is the test results from the data generated using hydrophilic interaction liquid chromatography (HILIC) with positive electrospray ionization (ESI).

### Usage

    data("pos")

### Format

A data frame with 2252 observations on the following 4 variables.

`m.z`

  a numeric vector. The mass-to-charge ratio of the features.

`retention.time`

  a numeric vector. The retention time of the features.

`p.value`

  a numeric vector. The p-values of the features.

`statistic`

  a numeric vector. The test statistics of the features.

### References

Liang D, Moutinho JL, Golan R, Yu T, Ladva CN, Niedzwiecki M, Walker DI, Sarnat SE, Chang HH, Greenwald R, Jones DP, Russell AG, Sarnat JA (2018) Use of high-resolution metabolomics for the identification of metabolic T signals associated with traffic-related air pollution. Environment International. 120:145-154.

### Examples

    data(pos)

[Package metapone version 1.0.0 Index]