blank_filter: MS/NMR data filtering based on "blank" data

In wanchanglin/mtExtra: More functions for metabolomics data analysis

MS/NMR data filtering based on "blank" data

Description

MS/NMR data filtering based on "blank" data

Usage

blank_filter(
  x,
  y,
  method = c("mean", "median", "max"),
  factor = 1,
  f_mv = TRUE,
  thres_mv = 0.3
)

Arguments

x	a data matrix.
y	a character string with contents of "sample", "qc" and "blank".
method	method for stats. Support "mean", "median" and "max".
factor	multiplier for blank stats
f_mv	a flag indicating whether perform missing value filtering on "sample" data.
thres_mv	threshold of missing values on QC. Features less than this threshold will be kept.

Details

This function provides an option to perform missing value filtering on "sample" data.

Value

a list of with contents:

• dat the filtered data matrix

• idx a logical vector of index for keeping features.

See Also

Other variable filters: locfdr_filter(), mv_filter(), qc_filter(), rsd_filter(), var_filter()

wanchanglin/mtExtra documentation built on June 14, 2025, 4:39 a.m.