How Can I Use Nested Loops on Pyhton

Advertisements I saw an example about using nested loop in pyhton. students = [[‘Igor’, ‘Sokolov’], [‘Riko’, ‘Miyazaki’], [‘Tuva’, ‘Johansen’]] for student in students: for name in student: print(name) print() I want to use same thing below: def id_validator(verified_ids,feedback_ids): for ids in id_validator: for x in ids: print(x) id_validator([5, 8], [5,8,30,50]) I expected to see 5… Read More How Can I Use Nested Loops on Pyhton

All possible way of adding up number in a sequence so that it becomes a given number

Advertisements I was given range n and number k. Count the possible ways so that two (not identical) number in that range add up to number k. And can this be done without nested loops? Here’s my approach, the only thing is I’m using a nested loop, which takes times and not computer-friendly. Opposite pairs… Read More All possible way of adding up number in a sequence so that it becomes a given number

What's the exact distinction between the FOR loop and the WHILE Loop

Advertisements I understand that loops are an integral part of any programming language. They help us to iterate tasks that are repetitive. But I don’t seem to understand why these 2 loops are required seperately. Can’t just one of them do the job? I have tried both loops and still can’t seem to understand how… Read More What's the exact distinction between the FOR loop and the WHILE Loop

How to reset a sequence in a R dataframe's column, based on the levels of a different column

Advertisements I have data that logs subject and session information in columns like so: > Subject <- c(rep("A", 6), rep("B", 7)) > Session <- c(rep(1, 3), rep(2, 3), rep(8, 4), rep(9, 3)) > df <- data.frame(Subject, Session) > df Subject Session 1 A 1 2 A 1 3 A 1 4 A 2 5 A… Read More How to reset a sequence in a R dataframe's column, based on the levels of a different column