I'm sure this would be a common question, however yet to find an answer for.
Suppose I have two, 2D vectors in Python
RaceA =[[ Runner ID, Heart Rate, Kilometers Done,], [1234, 67, 50], [1256, 83,64], [1356,92,82], [845,80,18]] RaceB =[[ Runner ID, Heart Rate, Kilometers Done,], [845, 79, 74], [5363, 86,34], [1256,84,53], [12233,93,74], [4233,40,34]]
As you can see, both races had different racers. I'd like to compare the heart rates of racers who ran both of the races.
Hence my answer would be:
[[Racer ID, Heart Rate A, Heart Rate B], [1256,83,84], [845,80,79]]
I've used the '&' operator and that returns me the racers IDs for example. But I feel like I'm missing out on a function that will return me heart rate values for both racers in a swift fashion.
This obviously isn't my problem (I have vectors 6000 and 50000 rows long) but the premise is there.