anonymous
  • anonymous
What is zdelta/2 when delta is 0.01?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Model: y_{hi} = 1 with pr=exp(x_{hi}'beta_h)/(1+exp(x_{hi}'beta_h). beta_h is nvar x 1. h=1,...,length(lgtdata) units or "respondents" for survey data. beta_h= ZDelta[h,] + u_h. Note: here ZDelta refers to Z%*%Delta, ZDelta[h,] is hth row of this product. Delta is an nz x nvar array. u_h ~ N(0,V_{beta}). Priors: delta= vec(Delta) ~ N(vec(Deltabar),V_{beta} (x) ADelta^{-1}) V_{beta} ~ IW(nu,V) Lists contain: lgtdatalist of lists with each cross-section unit MNL data lgtdata[[h]]$y n_h vector of binary outcomes (0,1) lgtdata[[h]]$X n_h by nvar design matrix for hth unit Deltabarnz x nvar matrix of prior means (def: 0) ADelta prior prec matrix (def: .01I) nu d.f. parm for IW prior on norm comp Sigma (def: nvar+3) V pds location parm for IW prior on norm comp Sigma (def: nuI) sbeta scaling parm for RW Metropolis (def: .2) R number of MCMC draws keep MCMC thinning parm: keep every keepth draw (def: 1) Value a list containing: Deltadraw R/keep x nz*nvar matrix of draws of Delta betadraw nlgt x nvar x R/keep array of draws of betas Vbetadraw R/keep x nvar*nvar matrix of draws of Vbeta llike R/keep vector of log-like values reject R/keep vector of reject rates over nlgt units Note Some experimentation with the Metropolis scaling paramter (sbeta) may be required.

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