if two columns from two different dataframes pandas code example
Example 1: pandas compare two columns of different dataframe
df1['priceDiff?'] = np.where(df1['Price1'] == df2['Price2'], 0, df1['Price1'] - df2['Price2'])
Example 2: pandas compare two columns of different dataframe
df3 = [(df2.type.isin(df1.type)) & (df1.value.between(df2.low,df2.high,inclusive=True))]
df1.join(df3)