Baunsgaard commented on code in PR #2093:
URL: https://github.com/apache/systemds/pull/2093#discussion_r1744332455
##########
src/main/python/systemds/operator/nodes/matrix.py:
##########
@@ -522,5 +522,12 @@ def replace(self, pattern: VALID_INPUT_TYPES, replacement:
VALID_INPUT_TYPES) ->
"""
return Matrix(self.sds_context, "replace",
named_input_nodes={"target": self, "pattern": pattern, "replacement":
replacement})
+ def cumsum(self) -> 'Matrix':
+ """ Column prefix-sum. (For row-prefix sum, use X.t().cumsum().t())
Review Comment:
i have made a task for it and marked it as a student project, unrelated to
this PR, such that we do not forget it.
https://issues.apache.org/jira/browse/SYSTEMDS-3762
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