Cast to Sparse
Convert dense objects to sparse representations
as.sparse(x, ...) ## S3 method for class 'data.frame' as.sparse(x, row.names = NULL, ...) ## S3 method for class 'Matrix' as.sparse(x, ...) ## S3 method for class 'matrix' as.sparse(x, ...)
x |
An object |
... |
Arguments passed to other methods |
row.names |
|
A sparse representation of the input data
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