Something seems wrong in the way the group generics are registered, as they are not being called. As a workaround, add
export(Math.fractions,Ops.fractions,Summary.fractions) to library/MASS/NAMESPACE and the examples seem to work again. On Wed, 23 Jul 2003, Barry Rowlingson wrote: > Prof Brian Ripley wrote: > > On Tue, 22 Jul 2003, Duncan Murdoch wrote: > > > This is not even a VR bug: no one said abs() is implemented for fractions, > > and it is not. From the help page: > > > > Arithmetic operations on `"fractions"' objects are possible. > > > > and abs() is not such an operation. > > > > Something funny is happening with printing fractions - the values seem > correct under abs() [and other functions]: > > > xf > [1] 2 -2/5 2/5 2/3 > > abs(xf) > [1] 2 -2/5 2/5 2/3 > > abs(xf)[2] > [1] 2/5 > > huh? > > > sqrt(xf) > [1] 2 -2/5 2/5 2/3 > Warning message: > NaNs produced in: sqrt(xf) > > > sqrt(xf)[1:4] > [1] 8119/5741 NaN 191/302 38804/47525 > Warning message: > NaNs produced in: sqrt(xf) > > Bug, undocumented behaviour, feature? I dont know. It all seems to > work in 1.6.0, so everyone should downgrade now... :) > > Baz > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-devel > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
