<human>:  Rounding entries in a Pandas DafaFrame
<bot>: Here is some code to round off entries in dataframe `df` column `Alabama_exp` to two decimal places, and entries in column `Credit_exp` to three decimal places

df.round({'Alabama_exp': 2, 'Credit_exp': 3})

#Warning: this code generation is experimental. Please inspect the code for any bugs before executing.