ppc.make.peaklist {ppc}R Documentation

Function to extract peaks from raw mass spec data

Description

This function to extracts peaks from raw mass spec data. It uses a very simple peak finder "peaks"- looking for sites where the intensity is higher than it is elsewhere in a user-defined window surrounding that site.

Usage

ppc.make.peaklist(data, user.parms)

Arguments

data List containing raw mass spec data
user.parms List of user parameters

Value

List of peaks- one component per spectrum. Each component is a matrix of log m/z values and peak intensity.

Author(s)

Balasubramanian Narasimhan and Rob Tibshirani

Examples

## for a complete worked example of this function in a PPC analysis  see
##  http://www-stat.stanford.edu/~tibs/PPC/Rdist/Rscript.rawdata

[Package ppc version 1.01 Index]