แพทย์ที่สั่งยาปริมาณสูงสุดมีชื่ออะไรบ้าง?
What are the names of the physician who prescribed the highest dose?
df_prescribes = pd.DataFrame(columns=['physician', 'dose']); df_physician = pd.DataFrame(columns=['name', 'employeeid'])
df_physician[df_physician['employeeid']==df_prescribes.loc[df_prescribes['dose'].idxmax()]['physician']]['name']