Description Usage Arguments Details Value Author(s) Examples
This function draws a sample from the uniform distribution on the Stiefel manifold.
1 | runif_sm(num, ip, ir)
|
num |
number of observations or sample size. |
ip |
the first dimension p of the matrix. |
ir |
the second dimension r of the matrix. |
The Stiefel manifold with dimension p and r (p ≥q r) is a space whose points are r-frames in R^p. A set of r orthonormal vectors in R^p is called an r-frame in R^p. The Stiefel manifold is a collection of p \times r full rank matrices X such that X'X = I_r.
an array with dimension num
, ip
and ir
containing a sample of draws from the uniform distribution on the Stiefel manifold.
Yukai Yang, yukai.yang@statistik.uu.se
1 | runif_sm(10,4,2)
|
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