DOES NOBODY KNOW? HELP! lybaomc wrote: > > Hi,all > > with my data,there are more than 1000 quantitative results of antibody > concentrations, there may be 2 components(positive and negative), or 3 > components (may be strong positive, positive, and negative), or 4-6 > components. Could you tell me how to determine the number of components of > the mixture model? the "anova.mix" in mixdist of the R software seems not > work. > > my data is a little complicated(TABLE ), there are more than 1000 > quantitative results of antibody concentrations stratified by age.The > overall density of results at age j, Fj, is a mixture of the component > densities, so if there are 5 age groups, then there will be 5 mixture > models. Do i have to analyse each stratum respectively? > > TABLE > ------------------------ > age Bin length freq > ------------------------ > 1 1 19.75 4 > 1 2 21.75 10 > ………… > 1 12 41.75 36 > ………… > ------------------------ > 2 1 19.75 4 > 2 2 21.75 10 > ………… > 2 12 41.75 36 > ………… > ----------------------- > > appreciated > > lybao >
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