asBigMatrix-methods {lumi} | R Documentation

## convert the data matrix in the assayData of a ExpressionSet as BigMatrix

### Description

convert the data matrix in the assayData of a ExpressionSet as BigMatrix

### Usage

    ## S4 method for signature 'ExpressionSet'
    asBigMatrix(object, rowInd=NULL, colInd=NULL, nCol=NULL, dimNames=NULL, saveDir='.', savePrefix=NULL, ...)

### Arguments

`object` | an object of `ExpressionSet` or its inherited class
`rowInd` | the subset of row index
`colInd` | the subset of column index
`nCol` | the number of columns of the data, which can be larger than the real data dimension. It is designed for adding future data.
`dimNames` | the dimension names, which is a list of two character vectors (rownames and colnames)
`saveDir` | the parent directory to save the BigMatrix data files
`savePrefix` | the folder name prefix of the directory to save the BigMatrix data files. The fold name will be like this: paste(savePrefix, '_bigmat', sep=”)
`...` | optional arguments to `BigMatrix`

### Details

This function does not work in Windows because the dependent package bigmemoryExtras does not support it. In order to make lumi package still compilation under Windows, I deliberately remove the dependency of bigmemoryExtras package. As a result, users need to manually load the bigmemoryExtras function before using this function.

The BigMatrix data files will be save in the directory file.path(saveDir, paste(savePrefix, '_bigmat', sep=”))

### See Also

`BigMatrix`

[Package lumi version 2.36.0 Index]