Description Usage Arguments Value Examples

Export the variable metadata of an experiment, to be used for statistical analysis.

1 2 | ```
## S4 method for signature 'proFIAset'
exportVariableMetadata(object, filename = NULL)
``` |

`object` |
A proFIAset object. |

`filename` |
If not NULL the result will be written in filename |

A dataframe with the following columns :

variableID an ID similar to the one of the peak table.

mzMed the median value of group in the m/z dimension.

mzMin the minimum value of the group in the m/z dimension.

mzMax the maximum value of the group in the m/z dimension.

scanMin the first scan on which the signal is detected.

scanMax the last scan on which the signal is detected.

nPeaks The number of peaks grouped in a group.

meanSolvent The mean of solvent in the acquisition.

signalOverSolventPvalue The mean p-value of the group.

corMean The mean of the matrix effect indicator.

SigSolMean The mean of ratio of the signal max intensity on the solvent max intensity.

1 2 3 4 5 | ```
if(require(plasFIA)){
data(plasSet)
vtab<-exportVariableMetadata(plasSet)
head(vtab)
}
``` |

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