non Invertible of a ARIMA model

Question

I am trying to write a code to generate a series of arima model and compare different models.The code is as follow.

p=0
q=0
d=0
pdq=[]
aic=[]

for p in range         


        

Answer 1

Use try: ... except: ... to catch the exception and continue

for p in range(6):
    for d in range(2):
        for q in range(4):
            try:
                arima_mod=sm.tsa.ARIMA(df,(p,d,q)).fit(transparams=True)

                x=arima_mod.aic

                x1= p,d,q
                print (x1,x)

                aic.append(x)
                pdq.append(x1)
            except:
                pass
                # ignore the error and go on