IF STATEMENT Calculate Field Help ArcPro

ABM2021

Hello everyone. I am new to coding and need some help using the calculate field option.

I have one field (!ARA!) and another field (!Class!). When area is a certain size, I would like to change the attribution of !Class! to be either 25, 50, 100, or 200. 

Should the field name be !Class!?

Expression type : Python 3

What should the expression be?

Is this the correct code block?

def Reclass(!ARA!):
if !ARA! is <= 1000:
return 25
elif !ARA! >= 1000:
return 50
elif !ARA! >= 2000:
return 100
elif !ARA! >= 5000:
return 150

I keep getting syntax errors. I will appreciate any help! Thank you in advance.

kenbuja

The code won't work as expected. The If statement will be satisfied with the first condition that evaluated to true, so inValue = 5000 would return 50. You want the logic to be like this instead.

 

def Reclass(inValue):
  if inValue is <= 1000:
    return 25
  elif inValue < 2000:
    return 50
  elif inValue < 5000:
    return 100
  else:
    return 150