createLinkMatrix {MetCirc} | R Documentation

## Create a matrix which contains features to link (indices)

### Description

Create a matrix which contains features to link (indices)

### Usage

    createLinkMatrix(similarityMatrix, threshold_low, threshold_high)

### Arguments

`similarityMatrix` | `matrix`, a similarity matrix that contains the NDP similarity measure between all precursors in the data set
`threshold_low` | `numeric`, threshold value for NDP values, below this value linked features will not be included
`threshold_high` | `numeric`, threshold value for NDP values, above this value linked features will not be included

### Details

`threshold_low` and `threshold_high` are numerical values and truncate similar/identical precursor ions; similarity is currently based on the normalised dot product.

### Value

`createLinkMatrix` returns a matrix that gives per each row information on linked features

### Author(s)

Thomas Naake, thomasnaake@googlemail.com

### Examples

    data("binnedMSP", package = "MetCirc")
    ## use only a selection
    binnedMSP <- binnedMSP[c(c(1:20, 29:48, 113:132, 240:259)),]
    similarityMat <- createSimilarityMatrix(binnedMSP)
    createLinkMatrix(similarityMatrix = similarityMat,
         threshold_low = 0.5, threshold_high=1)

[Package MetCirc version 1.14.0 Index]