Retention Time Deletion

[bouranij]

Hello WarpGroup team,

Your suite of software (X13CMS and WarpGroup) have been super helpful for completing my untargeted analysis, however, I am running into a strange issue with WarpGroup. I am feeding an xcmsSet object which has been preprocessed using XCMS (centwave, obiwarp, density-grouping) into WarpGroup and it works no problem. However, when I call the resulting WarpGroup object the run time has been changed to NaN-NaN.

The xcmsSet object fed into WarpGroup
'> xs.rg
An "xcmsSet" object with 60 samples

Time range: 226.7-2415.6 seconds (3.8-40.3 minutes)
Mass range: 61.9879-999.0991 m/z
Peaks: 27029 (about 450 per sample)
Peak Groups: 49
Sample classes: D2O_4h, D2O_Baseline, H2O_4h, H2O_Baseline, QC

Feature detection:
o Peak picking performed on MS1.
o Scan range limited to 1 - 7463
Profile settings: method = bin
step = 0.1

Memory usage: 46.3 MB'

The object after WarpGrouping
`> xs.wg
An "xcmsSet" object with 60 samples

Time range: NaN-NaN seconds (NaN-NaN minutes)
Mass range: 96.9592-919.2379 m/z
Peaks: 28740 (about 479 per sample)
Peak Groups: 479
Sample classes: D2O_4h, D2O_Baseline, H2O_4h, H2O_Baseline, QC

Feature detection:
o Peak picking performed on MS1.
o Scan range limited to 1 - 7463
Profile settings: method = bin
step = 0.1

Memory usage: 46.4 MB`