search for: checkwz

...he founded initial values I have I have the message. But When try great initial value for ishape and iscale I have this regWeib0<-vglm(eqn0,family=weibull(lshape='logoff',lscale='loge',eshape=list(offset=-2),ishape=22,iscale=6),subset(br, fdh<1)) Messages d'avis : 1: In checkwz(wz, M = M, trace = trace, wzeps = control$wzepsilon) : ? 1525 elements replaced by 1.819e-12 2: In checkwz(wz, M = M, trace = trace, wzeps = control$wzepsilon) : ? 1525 elements replaced by 1.819e-12 3: In checkwz(wz, M = M, trace = trace, wzeps = control$wzepsilon) : ? 1525 elements replaced by 1....

...arallel=T)) Coefficients: (Intercept):1 (Intercept):2 log(exposure.time) -1.6306499 2.5630170 -0.1937956 Degrees of Freedom: 48 Total; 45 Residual Residual Deviance: 503.7251 Log-likelihood: -251.8626 Warning messages: 1: 4 elements replaced by 1.819e-12 in: checkwz(wz, M = M, trace = trace, wzeps = control$wzepsilon) 2: 4 elements replaced by 1.819e-12 in: checkwz(wz, M = M, trace = trace, wzeps = control$wzepsilon) 3: 4 elements replaced by 1.819e-12 in: checkwz(wz, M = M, trace = trace, wzeps = control$wzepsilon) 4: 4 elements replaced by 1.819e-12 in: c...

...a, fam=multinomial, weights = Number) However I am getting following error: Error in if (max(abs(ycounts - round(ycounts))) > smallno) warning("converting 'ycounts' to integer in @loglikelihood") : missing value where TRUE/FALSE needed In addition: Warning messages: 1: In checkwz(wz, M = M, trace = trace, wzepsilon = control$wzepsilon) : 96 elements replaced by 1.819e-12 2: In checkwz(wz, M = M, trace = trace, wzepsilon = control$wzepsilon) : 96 elements replaced by 1.819e-12 3: In checkwz(wz, M = M, trace = trace, wzepsilon = control$wzepsilon) : 96 elements replaced...

...12932539841, 0.533057528200189, : number of items to replace is not a multiple of replacement length In addition: Warning messages: 1: NaNs produced in: log(x) 2: fitted values close to 0 or 1 in: tfun(mu = mu, y = y, w = w, res = FALSE, eta = eta, extra) 3: 19 elements replaced by 1.819e-12 in: checkwz(wz, M = M, trace = trace, wzeps = control$wzepsilon) Ironically, it works ok with Proportional Odds (change parallel = T above), but fails with PPO (parallel = F). I will appreciate any help to fix this problem. Thanks Rizwan Younis Grad Student University of Waterloo Waterloo, ON Canada

...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] <- tmp777 : number of items to replace is not a multiple of replacement length In addition: Warning message: In checkwz(wz, M = M, trace = trace, wzeps = control$wzepsilon) : 357 elements replaced by 1.819e-12 In case someone has the interest or time in helping me get models to converge, I provide an example model and data. (Data are attached and the model code is below.) Thanks for your help. library(VGAM)...