You forgot drop=FALSE, one of the commonest S programmers' oversights.
The lm.fit call should be
fit = lm.fit(x[ind, , drop = FALSE], y[ind])
Please don't mix assignment operators in posted code, BTW.
--
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
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