mismatch of the prior information and result (MixSIAR)

[Earthrowm-Zhong]

Hi everyone,

I am not sure if I did any mistake when I used MixSIAR. But I found my summary_statistics result is mismatch with my prior information. From other results, I haven known that the contribution of my three source should be: source A: source B: source C=0.175: 0.525: 0.3. When I plotted the prior plot, the source contribution is right. But When I add this prior information to my model, the result is totally wrong, which become: source A>= source C > source B. I tried to change the order of the prior information, but it doesn’t work. I would be appreciated if you could give me any suggestions. My prior plot code is: plot_prior(alpha.prior=c(0.175,0.525,0.3),source,plot_save_png = T,plot_save_pdf = F,filename="prior_specialist") My model is: jags.1 <- run_model(run="test", mix.1, source, discr, model_filename,alpha.prior=c(0.175,0.525,0.3))

Thank you so much!