specmine (version 1.0)

normalize: Normalize data

Description

Normalize the data from the dataset with a specific method.

Usage

normalize(dataset, method, ref = NULL, constant = 1000)

Arguments

dataset

list representing the dataset from a metabolomics experiment.

method

string specifying the normalization method. The possible values are:

• "sum" normalization by sum.
• "median" normalization by median.
• "ref.sample" normalization by reference sample.
• "ref.feature" normalization by reference feature.

ref

the reference if method is "ref.sample" or "ref.feature".

constant

the constant value if method is "sum".

Value

Returns the dataset with the data normalized.

Examples

  ## Example of normalization by median
  data(cassavaPPD)
  cassava.norm = normalize(cassavaPPD, "median")