An object of class matrix with 7 rows and 7 columns.
Details
This is a 7x7 real-valued covariance matrix.
References
Aston, John A. D.; Pigoli, Davide; Tavakoli, Shahin. Tests for
separability in nonparametric covariance operators of random surfaces. Ann.
Statist. 45 (2017), no. 4, 1431--1461. doi:10.1214/16-AOS1495.
https://projecteuclid.org/euclid.aos/1498636862