Mike Dusenberry created SYSTEMML-515:
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Summary: 'Sparsity' Parameter For `rand` Statement Should Allow
Expression
Key: SYSTEMML-515
URL: https://issues.apache.org/jira/browse/SYSTEMML-515
Project: SystemML
Issue Type: Improvement
Reporter: Mike Dusenberry
The {{rand(...)}} function has a {{sparsity}} parameter that allows one to
specify the desired sparsity of the generated matrix as in
{code}
X = rand(rows=10, cols=20, min=0, max=1, pdf=”uniform”, sparsity=0.2)
{code}.
Currently, the {{sparsity}} parameter only accepts {{Literal}} inputs, i.e.
hard-coded double values, or variables that are themselves hard-coded double
values. It would be better to allow an expression that evaluates to a double
value, such as the following, simple, contrived example:
{code}
s = log(0.2)
X = rand(rows=10, cols=20, min=0, max=1, pdf=”uniform”, sparsity=s)
{code}.
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