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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