Mahalanobis distance between 2 points doesn't work when covariance matrix has values close to 0
37653
Singular covariance matrix in Mahalanobis distance in Matlab
26493
Prove the relation between Mahalanobis distance and Leverage?
16641
Strange results of varimax rotation of principal component analysis in Stata: rotated components are all zeros and ones
9215
Bottom to top explanation of the Mahalanobis distance?
156372
Abnormal results projecting WGS84 to local Azimuthal Equidistant projection with pyproj
83292
Manually calculated $R^2$ doesn't match up with randomForest() $R^2$ for testing new data
38169
Bounds on off-diagonal entries of a correlation matrix
31153
Converting similarity matrix to (euclidean) distance matrix
127972
Can distance between two closed sets be zero?
4443
Why is the determinant zero iff the column vectors are linearly dependent?
154757
One component in PCA is always the mean vector in two-dimensions but not three
90064
What does it mean when Mathematica returns a zero "eigenvector"?
26386
How to estimate the matrix condition number in the 2-Norm?
87448
Why is a sample covariance matrix singular when sample size is less than number of variables?
53816
Linear Regression With Groups vs. Points - Issue with Influence of Zeros
126544
Constructing N-dimensional vectors out of point distances
81562
Maximum likelihood when usual procedure doesn't work