如何用数字替换熊猫数据框中的单词？

Question

I'm using python to analyse survey questions.

I have a large panda dataframe of questions (columns) and each question has a different possible answer eg 'agree' 'neutral' 'disagree' & there are around 1800 responses.

I want to replace each word with a numerical value eg agree = 1, neutral = 2 and disagree = 3.

NB the data type is object not string.

What is the most efficient way to do this?

Answer 1

You could do something with the dictionary to replace

responses = {'key1': 'value1', 'key2': 'value2'}

df.replace(responses, regex=True)