I have two lists. One list contains X coordinate values and second list contains Y coordinate values. Using these two lists, I want to make a tupple which is sorted by their first element.
X coordinate = [2, 3, 4, 4, 3, 2, 1, 0, 0, 1, 1, 1, 1, 2, 2, 2]
Y coordinate = [3, 3, 3, 4, 4, 4, 4, 4, 3, 3, 2, 1, 0, 0, 1, 2]
I want my output like this:
[(0, 3), (0, 4), (1, 0), (1, 1), (1, 2), (1, 3), (1, 4), (2, 0), (2, 1), (2, 2), (2, 3), (2, 4), (3, 3), (3, 4), (4, 3), (4, 4)]
To achieve this result, I wrote below code and got an output mentioend below.
merged_list = list(tuple(zip(X3_coordinate, Y3_coordinate)))
merged_list.sort(key=lambda x: x[0])
merged_list
Output:
[(0, 4), (0, 3), (1, 4), (1, 3), (1, 2), (1, 1), (1, 0), (2, 3), (2, 4), (2, 0), (2, 1), (2, 2), (3, 3), (3, 4), (4, 3), (4, 4)]
Kindly let me know what I am doing wrong and give some suggestions of code.
>Solution :
- instead of
list(tuple())just dolist() - sort with no key, it’ll do element-wise by default
- use
sorteddo both generate the list and sort
X_coordinate = [2, 3, 4, 4, 3, 2, 1, 0, 0, 1, 1, 1, 1, 2, 2, 2]
Y_coordinate = [3, 3, 3, 4, 4, 4, 4, 4, 3, 3, 2, 1, 0, 0, 1, 2]
merged_list = sorted(zip(X_coordinate, Y_coordinate))
print(merged_list)