Turn a Microarray Data Object into a Matrix
Turn a microarray data object into a numeric matrix by extracting the expression values.
## S3 method for class 'MAList' as.matrix(x,...)
x |
an object of class |
... |
additional arguments, not used for these methods. |
These methods extract the matrix of log-ratios, for MAList or marrayNorm objects, or the matrix of expression values for other expression objects such as EList or ExressionSet.
For MArrayLM objects, the matrix of fitted coefficients is extracted.
These methods involve loss of information, so the original data object is not recoverable.
A numeric matrix.
Gordon Smyth
02.Classes gives an overview of data classes used in LIMMA.
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