The resulting object is an extension of a
matrix object, and stores values (typically genome-wide scores) for a predefined set of regions
Each row on the ScoreMatrix is a predefined region (Ex: CpG islands, promoters) and columns are values across those regions.
as(from, "matrix"): Creates a matrix from
ScoreMatrix object. You can also use S3Part() function to extract the matrix from
In the code snippets below, x is a ScoreMatrix object.
'x[i,j]': Get or set elements from row
i and column
j and return a subset ScoreMatrix object.
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