metaX (version 1.4.0)

powerAnalyst: Power Analysis

Description

Power Analysis

Usage

powerAnalyst(para, group, valueID = "value", log = TRUE, maxInd = 1000, fdr = 0.1, showPlot = FALSE)

Arguments

para

An metaXpara object

group

A vector of sample names

valueID

The column name used

log

A logical indicating whether transform the data with log2

maxInd

max sample number

fdr

The FDR threshold

showPlot

Whether or not to print the figure to screen

Value

An value

Examples

## Not run:  
# library(reshape2)
# library(dplyr)
# a <- read.csv("http://www.metaboanalyst.ca/MetaboAnalyst/resources/data/power_example.csv")
# peaksData <- melt(a,id.vars = c("Diet","Sample"),
#     value.name = "value",variable.name = "ID")
# peaksData <- dplyr::rename(peaksData,class=Diet,sample=Sample)
# para <- new("metaXpara")
# peaksData(para) <- peaksData
# para <- missingValueImpute(para)
# para <- metaX::normalize(para)
# para <- transformation(para,valueID = "value")
# para <- preProcess(para,scale = "pareto",valueID="value")
# powerAnalyst(para,group=c("case","control"),log=FALSE,maxInd=200)
# ## End(Not run)