array operations in numpy vs matlab

Question

I have a Matlab code that I have to convert into python. There is this one operation that I am currently struggling with. I have a Matlab array "edof" which has the dimensions 262144 x 24. I have a second array "dofVector" which has the dimensions 823875 x 1. The operation performed is:

edof = dofVector(edof);

which updates my variable and I get the resulting dimensions of the variable "edof" to be the same as before i.e 262144 x 24 but the values are changed.

I am trying to convert this line of code in numpy but have been unable do so.

edof = dofVector[edof]

I get the following error.

Can someone please help me here?

I am not including the description of the arrays here as this is highly technical and specific to my field.

Thank you!

Mad Physicist · Accepted Answer · 2021-07-02 13:39:44Z

2

Numpy indices are zero-based. MATLAB indices are one-based. So if edof is identical between MATLAB and Python up to that step, you'll want to do

edof = dofVector[edof - 1]

answered Jul 2, 2021 at 13:39

Mad Physicist

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