[BioC] ROC package under R-2.0.0

Robert Gentleman rgentlem at jimmy.harvard.edu
Tue Nov 2 21:38:46 CET 2004

On Tue, Nov 02, 2004 at 12:22:55PM -0800, Xiao-Jun Ma wrote:
> Jeff,
> I just upgraded R to R-2.0.0. I noticed significantly slower performance of ROC compared to R.1.9.1 (I was doing an apply to a matrix with the function pAUC). I don't know whether this is an issue of R or ROC. My R install is on RedHat 7.3.
> Any help would be appreciated.

 It is best not to speculate, if you can give us hard data we can have
 a look at what the possible problems are (but there are far too many,
 most with nothing to do with R or BioC).

 R has two functions you can use to see what the problems are, or
 might be. One is system.time and the other is Rprof (the man pages
 will tell you how to use them). Running them in both 1.9.1 and 2.0.0,
 and comparing the results will be most helpful in tracking down what
 the issue really is.


> Xiao-Jun
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| Robert Gentleman                 phone : (617) 632-5250                   |
| Associate Professor              fax:   (617)  632-2444                   |
| Department of Biostatistics      office: M1B20                            |
| Harvard School of Public Health  email: rgentlem at jimmy.harvard.edu        |

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