Mar-10-2019, 11:23 AM
(This post was last modified: Mar-10-2019, 11:23 AM by dazzabaijan.)
I have 2 lists of x and y coordinate that are independently generated, with
a/h
amount of points between 0
and a
.x = np.linspace(0, a, a/h) y = np.linspace(0, d, d/h)when
a/h
is such that 0
increases to a
in steps of integers i.e. [0,1,2,..,a]
. It's nice because then the number of elements within the list can be used as indices. And as a result I can usually create a meshgrid such that a third list V1
can be associated with it.X, Y = plt.meshgrid(x, y) def potential(V1): return V1[X, Y]where
potential(V1)
is now V1
corresponding to the meshgrid [x, y]
. However I'm doing an assignment where I'm required to investigate how step-sizes affect my problem. As a result if I was to have a step-size of non-integers from 0
to a
i.e. [0, 0.5, 1,...,a]
Now I can't do what I did above since the indices are now non-integers. Raising the errorError: IndexError: arrays used as indices must be of integer (or boolean) type
How can I fix this so that I don't rely on the value of the element itself as the index of the elements, so that if there was a step-size of 0.25
between 0
to a
for a list X
say i.e. X = [0, 0.25, 0.75. 1.0] or x = np.linspace(0,1,4)such that I can have
x[0] = 0 corresponds to V[0] x[1] = 0.25 corresponds to V[1] x[2] = 0.75 corresponds to V[2] x[3] = 1 corresponds to V[3]?