2015-10-26 Thomas Yee <t.yee at auckland dot ac dot nz> * R/links.q (all link functions): big changes, when deriv >= 1 wrt 'inverse' argument. For example, logit(p, deriv = 1, inverse = TRUE) is now logit(p, deriv = 1, inverse = FALSE). Models fitted under <= VGAM 0.9-9 and saved might not work under >= VGAM 1.0-0. 2015-10-26 Thomas Yee <t.yee at auckland dot ac dot nz> * R/family.normal.R (tobit): tobit()@weight implements Fisher scoring entirely.
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