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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