The error structure used in solo run

[pixelRBT]

Dear Parnell,

I have been studying the error structure of Bayesian isotope source mixing models recently. When dealing with data containing only one mixture, simmr use a solo run. What is the error structure used when running a solo run? Process error + residual error or process error only (like MixSIR and MixSIAR)?

Sincerely, Liu