As getting the random values can be retrieved by using range(start, stop[, step])

However, I tried this function, np.arange() and set the np.random.seed(10) and dataset.sample(n=5) , but they do not work with my case.

What I am doing is that I import the 5 columns and 100 rows data from the excel file and I would like to randomly select 5 rows from the a column having integer values of 1-100. However, I would like the randomly selected numbers to have the step of 20.

Do you have any recommendation?

Thank you so much 🙂