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Data transformation: Converts a matrix to data.table and encodes categorical variables as factor.
matrix
data.table
factor
dtr_matrix2df(matrix, cat_vars = NULL)
A data.table is returned.
An R matrix object.
A character vector with colnames that should be converted to factor (default: NULL).
data("iris") mat <- data.matrix(iris) dataset <- dtr_matrix2df(mat) str(dataset) dataset <- dtr_matrix2df(mat, cat_vars = "Species") str(dataset)
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