filter_peaks: Filter peaks according to missing values.

In jaspershen/metflow2: Comprehensitive tools for metabolomics data processing and data analysis

Description

Filter peaks.

Usage

filter_peaks(
  object,
  min.fraction = 0.5,
  type = c("any", "all"),
  min.subject.blank.ratio = 2,
  dl.qc.r2.cutoff = 0.7,
  according.to = c("class", "group"),
  which.group
)

Arguments

object	A metflowClass object.
min.fraction	Peaks minimum fraction in samples (which.group).
type	Any ("any") or all ("all") groups should be meet this min.fraction.
min.subject.blank.ratio	Peak intensity ratio in subject and blank samples. If you set it < 1, no peaks will be removed.
dl.qc.r2.cutoff	R2 cutoff for dilution QC. If you set it < 0, no peaks will be removed.
according.to	Which information you want to use in sample information.
which.group	What groups you want to use.

Value

A new metflowClass object.

Author(s)

Xiaotao Shen [e-mail]

jaspershen/metflow2 documentation built on Aug. 15, 2021, 4:38 p.m.