Description Usage Arguments Value Examples
Convert data from dense representation (matrix) to sparse representation (list of data frames).
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X |
A |
zero |
A numeric value. Elements in |
threshold |
A numeric value, explained above. |
verbose |
A boolean value. |
A list of size N
. Value[[i]]
is a 2-column data frame. The 1st column is a sorted integer vector of the indexes of nonzero dimensions. Values in these dimensions are stored in the 2nd column as a numeric vector.
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