i have a little problem, i wanted to calculate the mahalanobis distance. but i’m not sure if it’s right.
In the beginning I reduced the four parameters to two dimensions ,
then I calculated covariance matrix ,
at the end I calculated the Mohalanobis distance. but the results look like this
why there are several values under the square bracket and not only two values, i have only two dimensional values. that means the vector must have only two values.
someone can help me
thank you very much