Remove molecules with CV larger that a threshold — filter_by_cv • lipidr

Remove molecules with CV larger that a threshold

filter_by_cv(data, cv.cutoff = 20, measure = "Area")

Arguments

data: LipidomicsExperiment object.
cv.cutoff: CV threshold (numeric). Default is 20.
measure: Which measure used to calculate CV, usually Area (default).

Value

LipidomicsExperiment object with molecules filtered.

Examples

data(data_normalized)
filter_by_cv(data_normalized)
#> class: LipidomicsExperiment 
#> dim: 271 56 
#> metadata(2): summarized dimnames
#> assays(3): Retention Time Area Background
#> rownames(271): 1 2 ... 277 278
#> rowData names(24): filename Molecule ... total_cs Class
#> colnames(56): S1A S2A ... TQC_11 TQC_12
#> colData names(3): group Diet BileAcid