How to make a matrix with negative indexes?

I keep trying to make a matrix with negative indexes but this error pops up: Array indices must be positive integers or logical values. Does anyone know how to fix this?

[Stephen23]

It sounds as if you might be trying to define a function of an independent variable. Please explain your algorithm in more detail.

Answer 1

[Walter Roberson]

Modify

https://www.mathworks.com/matlabcentral/fileexchange/33301-zero-based-indexable-arrays-oop-exercise

Another approach is to sprintf() the list of indices into a character vector, and use that as a key for containers.Map() . Some work would be involved if you wanted to use : indices or range indices.

Answer 2

[Image Analyst]

It's explained pretty well in the FAQ: click here