Validate the shape of a possibly time-varying matrix, or raise an exception
name : str
The name of the matrix being validated (used in exception messages)
shape : array_like
The shape of the matrix to be validated. May be of size 2 or (if the matrix is time-varying) 3.
nrows : int
The expected number of rows.
ncols : int
The expected number of columns.
nobs : int
The number of observations (used to validate the last dimension of a time-varying matrix)
ValueError :
If the matrix is not of the desired shape.
statsmodels.tsa.statespace.tools.unconstrain_stationary_multivariate
statsmodels.tsa.statespace.tools.validate_vector_shape
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