How to update null values at Random in pandas

I am trying to add null values at random to a pandas data for a specific column to perform testing on the data. For example if i have a dataframe with below values.

id	total_distance
1	1000
1	2000
3	4000
4	5000
5	10000

How to pass null values at random like below

id	total_distance
1	1000
1	2000
3	4000
4	NaN
5	10000

https://stackoverflow.com/questions/67352615/how-to-update-null-values-at-random-in-pandas May 02, 2021 at 11:01AM