python: getting around division by zero

Question

I have a big data set of floating point numbers. I iterate through them and evaluate np.log(x) for each of them. I get

RuntimeWarning: divide b         


        

Answer 1

You can do this.

def safe_ln(x):
   try:
      l = np.log(x)
   except ZeroDivisionError:
      l = 0
   return l