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2007 Jun 22
1
speed issues / pros & cons: dataframe vs. matrix
I've read that certain operations performed on a matrix (e.g. ribind, cbind) are often much faster compared to operations performed on a data frame.
Other then the "bind functions", what are the main operations that are significantly faster on a a matrix?
I know that data frames allow for columnnames and rownames, and that each column in a data frame can...