How to plot with matplotlib when both dependent and independent variables are in the same list

Question

Imagine this piece of code where X is the independent variable, and Y is the dependent variable and is equal to X ** 2:

X = [1, 2, 3]
Y = [1, 4, 9]
plt.plot(X, Y)
plt.show()

What if both of my variables were in the same list:

li = [[1, 1], [2, 4], [3, 9]]

The first element of every nested list is X, and the second one is Y; how should I plot this?

I'm pretty sure someone already asked this question, but I didn't know what to search and didn't found an answer.

`X, Y = zip(*li)`, see [this](https://stackoverflow.com/questions/13149278/splitting-a-nested-list-into-two-lists). — BigBen, Dec 12 '20 at 03:59

score 1 · Accepted Answer · answered Dec 12 '20 at 04:01

1

You can transpose the list of lists prior to plotting it:

X, Y = list(zip(*li))
plt.plot(X, Y)

answered Dec 12 '20 at 04:01

Reblochon Masque

1 Answers1