matrixPval {GIGSEA} | R Documentation

## matrixPval

### Description

matrixPval calculates the p values for the correlation coefficients based on t-statistics

### Usage

    matrixPval(r, df)

### Arguments

`r` | a vector or a matrix of Pearson correlation coefficients taking values in [-1,+1]
`df` | the degree of freedom

### Value

a vector or matrix of p values taking values in [0,1]

### Examples

    r <- cor(USArrests)
    df <- nrow(USArrests) - 2
    pval1 <- matrixPval(r,df)

    pval2 <- matrix(ncol=ncol(USArrests),nrow=ncol(USArrests),data=0)
    for(i in 1:ncol(USArrests))
    {
       for(j in 1:ncol(USArrests))
       {
         pval2[i,j] <- cor.test(USArrests[,i],USArrests[,j])$p.val
       }
    }

    head(pval1)
    head(pval2)

[Package GIGSEA version 1.0.0 Index]