Data Science Intern

Complete the function to find the value in a specified categorical column with the highest average of a specified numeric column.

import pandas as pddef category_avg(df, cat_column, num_column):   

 #### write code here    solution = None    

return solutiontest_case = category_avg(price_df, 'city','price')

You are given a square matrix of non-negative integers 'MATRIX'. Your task is to rotate that array by 90 degrees in an anti-clockwise direction using constant extra space.

For example:

For given 2D array :

    [    [ 1,  2,  3 ],
         [ 4,  5,  6 ],
         [ 7,  8,  9 ]  ]

After 90 degree rotation in anti clockwise direction, it will become:

    [   [ 3,  6,  9 ],
        [ 2,  5,  8 ],
        [ 1,  4,  7 ]   ]

How was your interview experience so far?
Why do you want to join us?
Are you a leader or a follower?