sumGroups
Utility function to sum over group labels
sumGroups(X, y, MARGIN = 2) ## S3 method for class 'dgCMatrix' sumGroups(X, y, MARGIN = 2) ## S3 method for class 'matrix' sumGroups(X, y, MARGIN = 2)
X |
matrix |
y |
group labels |
MARGIN |
whether observations are rows (=2) or columns (=1) |
Matrix of groups by features
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