Foad,

Visualizing data is definitely a complex field. I definitely feel your pain.
Printing your data is but one way of visualizing it, and probably only useful for very small and constrained datasets.
Have you looked into set_printoptions to see how numpy’s existing capabilities might help you with your visualization?

The code you showed seems quite good. I wouldn’t worry about performance when it comes to functions that will seldom be called in tight loops.
As you’ll learn more about python and numpy, you’ll keep expanding it to include more use cases.
For many of my projects, I create small submodules for visualization tailored to the specific needs of the particular project.
I’ll try to incorporate your functions and see how I use them.

Your original post seems to have some confusion about C Style vs F Style ordering. I hope that has been resolved.
There is also a lot of good documentation
https://docs.scipy.org/doc/numpy/user/numpy-for-matlab-users.html#numpy-for-matlab-users-notes
about transitioning from matlab.

Mark