Disregarding simple warnings/errors in tryCatch()

Question

I\'m a huge fan of tryCatch(). However, until today I never really paid attention to the distinction between simple and regular warnings/errors and thus I don\'

Answer 1

You can recall the forecast within the warning section, something like this:

mod <- tryCatch(
  out <- forecast::auto.arima(x=y),
  error=function(e) {
    print(e)
  },
  warning=function(w) {
    print(w)
    out <- forecast::auto.arima(x=y)
    return(out)
  }
)

This will print a warning , but the result of forecast is stored in mod now.

> mod
Series: y 
ARIMA(4,1,1)                    

Coefficients:
         ar1      ar2     ar3      ar4      ma1
      0.6768  -0.2142  0.5025  -0.7125  -0.8277
s.e.  0.0749   0.0889  0.0874   0.0735   0.0485

sigma^2 estimated as 915556:  log likelihood=-780.33
AIC=1572.65   AICc=1573.62   BIC=1587.91