unvech {gogarch} | R Documentation |
This function returns the symmetric matrix X
from a vector that
resulted from v = vech(X)
.
unvech(v)
v |
Vector, numeric. |
The vector v
must have length equal to m * (m + 1) / 2
,
whereby m
is a dimension of the symmetric matrix X_{m
\times m}
.
X |
Matrix, symmetric of order |
Bernhard Pfaff
v <- c(1, 2, 3, 4, 5, 6)
unvech(v)