A feature. What you really are doing is solve(V, diag(3)), and you get the colnames of the RHS. See the help page!
On Mon, 20 Jan 2003, Giovanni Marchetti wrote: > If I have a covariance matrix V > for example > > V = var(trees) > > V > Girth Height Volume > Girth 9.847914 10.38333 49.88812 > Height 10.383333 40.60000 62.66000 > Volume 49.888118 62.66000 270.20280 > > I woul like that the inverse (i.e. the concentration matrix) > had the same dimnames. But I get instead > > solve(V) > [,1] [,2] [,3] > Girth 1.71516635 0.07801175 -0.33476574 > Height 0.07801175 0.04190776 -0.02412188 > Volume -0.33476574 -0.02412188 0.07110330 > > I would like to know if this is a feature or a mistake. > > Thank you to all. > > -- Giovanni > < Giovanni M. Marchetti > > Dipartimento di Statistica, Univ. di Firenze Phone: +39 055 4237 204 > viale Morgagni, 59 Fax: +39 055 4223 560 > I 50134 Firenze, Italy email: [EMAIL PROTECTED] > > ______________________________________________ > [EMAIL PROTECTED] mailing list > http://www.stat.math.ethz.ch/mailman/listinfo/r-help > -- 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 http://www.stat.math.ethz.ch/mailman/listinfo/r-help