无法在Scipy中使用Rbf插入数据

Question

I was trying to interpolate data using Rbf. The output data that I need is actually a single value. So I used something like

x=numpy.array([100])
y=numpy.array([200])
d=numpy.array([300])
rbfi=scipy.interpolate.Rbf(x,y,d)

But there was an error:

ValueError: array must not contain infs or NaNs

Does anybody know how to solve this problem? Thanks a lot!

Answer 1

Quite outdated but in case anyone wonders:

Rbf requires at least 2 data points.

x=numpy.array([100,120])
y=numpy.array([200,220])
d=numpy.array([300,100])
rbfi=scipy.interpolate.Rbf(x,y,d)

>>> print(rbfi)
<scipy.interpolate.rbf.Rbf object at 0x7fdac142b240>