plotcov

 PLOTCOV Plots covariance ellipsoids

         plotcov(p,C)       

 Inputs 
 p: Center points of the covariance matrix by columns (RxQ)
 C: Covariance matrix specification can be either:
    a) a scalar with a single variance for all the center (hyperspheres)
    b) a vector (1xQ), with the values of the variances for each center (hyperspheres)
    c) a n-array (RxRxQ) with covariance matrices Cj,  j=1:Q (hyperellipsoids)

 See also QUADPLOT, INITCOV