Machine learning error messages

--------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-31-29405b792f60> in <module> 2 for yr in yr_list [ : 2 ] : 3 print ( type ( yr ) ) ----> 4 temp_df = nifty_data [ nifty_data [ 'year' ] . isin ( yr ) ] 5 print ( temp_df . head ( ) ) ~\.conda\envs\py36\lib\site-packages\pandas\core\series.py in isin (self, values) 4683 Name : animal , dtype : bool 4684 """ -> 4685 result = algorithms . isin ( self , values ) 4686 return self._constructor(result, index=self.index).__finalize__( 4687 self , method = "isin" ~\.conda\envs\py36\lib\site-packages\pandas\core\algorithms.py in isin (comps, values) 416 if not is_list_like ( values ) : 417 raise TypeError( --> 418 "onl...

I'm an MBA turned data scientist who enjoys applying data science to real world problems. Of particular interest to me are capital markets and the telecom industry (my current employer).  While working on machine learning problems, I've often been stuck trying to decipher the long and scary error messages which make you wonder if something really bad has happened.  Oftentimes it is the result of an incorrect datatype or a missed comma or bracket. Google and Stackoverflow are usually helpful but it still takes a while to figure out the solution that really works for you.  So I've decided to keep a blog of error messages that I face when writing code and how I managed to solve them. I will be writing predominantly in python at this time. My other blogs are http://realworldml.substack.com for overall ML work including some general principles when working on machine learning projects as well as application of data science skills to specific domains. My other blog http:/...