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revision 1855, Wed May 23 21:33:34 2007 UTC  revision 1887, Thu Jun 7 09:04:34 2007 UTC  

#  Line 142  Line 142 
142  !M where M is "sparseMatrix", currently always gives dense. This only  !M where M is "sparseMatrix", currently always gives dense. This only 
143  makes sense when M is ``really sparse''.  makes sense when M is ``really sparse''. 
144  
145   column names of sparse matrices are not printed.   column names of sparse matrices are not printed; 
146  i. "mention" them at the end of show()  we now "mention" them (if they are nonempty). 
147  ii. build show( <sparseMatrix>) on a function, possibly  Option: 
148  build show( <sparseMatrix>) on a function, possibly  
149  print.sparseMatrix(), which gets an argument such as  print.sparseMatrix(), which gets an argument such as 
150  'col.names.show = FALSE' which is documented and can be set to TRUE  'col.names.show = FALSE' which is documented and can be set to TRUE 
151  
152   'arules' needs fast colSums() and rowSums()  for ngCMatrix;  
153  do it for "nMatrix" and "lMatrix" and return *integer* 

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