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rmatrixsingular

Computationally singular matrix inverse error?

This error comes up when I am dividing by the matrix inverse.

 Error in solve.default(x) : 
  system is computationally singular: reciprocal condition number = 6.85861e-18 ```

What are the ways to solve this? I am using the matrix.inverse function to find the inverse.

Solution

  • Given a matrix M, I guess it would be safe to use ginv from package MASS to compute the inverse if you want to avoid the error in your post, e.g.,

    MASS::ginv(M)