Hi Ale - Try running the plotting command with explicit input for the years (endyrvec) like this:
modelnames <- c("Base Model", "Retro -1", "Retro -2", "Retro -3", "Retro -4", "Retro -5")
mysummary <- SSsummarize(list(base, retro1, retro2, retro3, retro4, retro5))
SSplotComparisons(mysummary, endyrvec = rev(2014:2019), legendlabels = modelnames)
Or with whatever final model year matches each of your retrospective runs. Let me know if this solves the problem.
It would be easier for users if the SSplotComparison could determine the final model year internally and plot that by default. I will look and see if this can be improved in the function.
Chantel
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Chantel Wetzel, PhD
Fishery Resource Analysis and Monitoring Division
Northwest Fisheries Science Center
National Marine Fisheries Service
National Oceanic and Atmospheric Administration