Description Usage Arguments Details See Also
View source: R/DataConversionFunctions.R
Convert multi-column data frame into a sparse matrix.
1 2 3 4 5 | ConvertMultiColumnDataFrameToSparseMatrix(
multiColDF,
itemColName,
tagTypeColNames
)
|
tagTypeColNames |
names of the tag type column names |
Multi-column |
data frame id-tag relationship |
idColName |
the column name of the item ID |
This does not work if the tagTypeColNames
have dash in them.
I assume because of the string-to-formula conversion in SMRCreateItemTagMatrix
.
Obviously, the dependence of the SMRCreateItemTagMatrix
can be removed.
Other Sparse matrix transformation functions:
SparseMatrixToTriplets()
,
ToColumnValueIncidenceMatrix()
,
TripletsToSparseMatrix()
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