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Cumulative sums.
Cumsum(X, dimens = 1)
Data Matrix.
Dimension for summing.
A matrix of the same size as X with cumulative sums within each row or each column.
Cumulative sums within rows (dimens=1) or columns (dimens=2) of a data matrix.
# NOT RUN { data(wine) X=wine[,4:21] Cumsum(X,1) Cumsum(X,2) # }
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