How do use JSL to quickly compare two sets of range columns in order to get the minimum of each column?
The title is a bit hard to understand. Take this big class as an example:
1. First, summarize the average values of "height" and "weight" by age.
2. Then summarize the median of "height" and "weight" by age.
3. Then compare the mean and median of "height" and take their minimum.
Finally, compare the mean and median of "body weight" and take their minimum. I'll use the following code and finally loop t...