drawing smooth line in python matplotlib

Asked Oct 16 '16 at 09:08

Active Oct 16 '16 at 09:10

Viewed 197 times

Well guys I searched a lot to find how to draw a smooth line for given points. First of all I had a file with this values

35,9.662
30,9.074
25,8.21
20,7.45
15,6.3
10,5.34
7,4.61
4,3.31
21,7.77

Then I tried to draw a smooth line using this code

x, y = np.loadtxt('design', delimiter = ',', unpack = True)
xSmooth = np.linspace(x.min(),x.max(),300)
ySmooth = spline(x,y,xSmooth)

When I print(ySmooth) it prints an array with all the elements 0. What should I do?

edited Oct 16 '16 at 09:10

Julien

asked Oct 16 '16 at 09:08

Vlad Crow

1

interestingly I just googled `matplotlib plot line` and found several useful hits on the first search page. See e.g. https://www.oreilly.com/learning/simple-line-plots-with-matplotlib – cel Oct 16 '16 at 09:15
Yea but it does not work as it should be. As I said y values are always 0 – Vlad Crow Oct 16 '16 at 10:50
Ah, my bad! Your `x` values must be increasing. – Vlas Sokolov Oct 16 '16 at 11:36
that helped thx – Vlad Crow Oct 16 '16 at 12:38

0 Answers0