search for: coefstart

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2008 Oct 10
0
Problems and bugs in vgam()
...ing gam. This presents a problem if one would like to use the parameter estimates from a gam model to try to fit a vgam model. 3. For my own data, I have been having a very difficult time getting vgam to converge. The help pages says that convergence may depend strongly on the initial values (coefstart) provided, and I have been modifying them but to no avail. Is there another way or more values that need to be given to make vgam models fit? I frequently run into the error below. Any advice on how to overcome it? Applying Greenstadt modification to 357 matrices Error in ans[, index] <- t...