Ug, dZdgZddlZddlmZddlmZddlm Z ddl m Z dd l m Z dd l m Z dd l mZe je je jejd Ze je je jejd Zd ddZGddZ ddZdS)a Python wrapper for PROPACK -------------------------- PROPACK is a collection of Fortran routines for iterative computation of partial SVDs of large matrices or linear operators. Based on BSD licensed pypropack project: http://github.com/jakevdp/pypropack Author: Jake Vanderplas PROPACK source is BSD licensed, and available at http://soi.stanford.edu/~rmunk/PROPACK/ _svdpN)check_random_state)aslinearoperator) LinAlgError) _spropack) _dpropack) _cpropack) _zpropack)fdFDLS)LMSMcJeZdZdZdZdZedZedZdS)_AProdz Wrapper class for linear operator The call signature of the __call__ method matches the callback of the PROPACK routines. c t||_dS#t$r*ttj||_YdSwxYwN)rA TypeErrornpasarray)selfrs X/var/www/surfInsights/venv3-11/lib/python3.11/site-packages/scipy/sparse/linalg/_svdp.py__init__z_AProd.__init__:sR 5%a((DFFF 5 5 5%bjmm44DFFFF 5s0A  A c|dkr!|j||dd<dS|j||dd<dS)Nn)rmatvecrmatvec)rtransamr xysparmiparms r__call__z_AProd.__call__@sI S==6==##AaaaDDD6>>!$$AaaaDDDc|jjSr)rshapers rr,z _AProd.shapeFs v|r*c |jjS#t$rD|jt j|jjdjcYSwxYw)Nr)rdtypeAttributeErrorr!rzerosr,r-s rr/z _AProd.dtypeJs` B6<  B B B6==$&,q/!:!:;;A A A A Bs A AAN) __name__ __module__ __qualname____doc__rr)propertyr,r/r*rrr3sw 555 %%% XBBXBBBr*rrTFMb`?cV t|}|}|dvrtd|s|dkrtdt|}|jj} t |}t|}n#t$rtj tj d|rtjtj}ntjtj}t |}t|}YnwxYw|j\}}|dks|t||krtd|d |z}|d }t|dz|dz|}||krtd |d |d|rdnd}|rdnd}tj||dzfd|}tj||fd|}|q|||d d df<tj tj d|r+|d d dfxxd||zz cc<n+ ||d d df<n #t$rtd|wxYw| +tjtj|j} | tj|jdz} |rptj| | | |f|}|||z }|t||z ||krtd|dkrtdn+tj| | | f|}tjt/t1| t/t1|fd}d}|s|rN||zd|zzd|z|zzdzt3d|z|zd|zzdz|t3||zz} d|z}!n9||zd|zzd |z|zzdzt3||zd|zdzz} d |zdz}!tj | |}"tj |!tj}#tj d|}$tj dtj}%|r%tj ||zd!|zz|}&|"|&|#f}'n|"|#f}'|r.|t8|||||||||||| g |'|||$|%R\}}(})}}*n|||||||||| g |'|||$|%R\}}(})}}*|*dkrt;d"|*d#|*dkrt;d$|d%|d&|d d d |f|(|d d d |fj|)fS)'a; Compute the singular value decomposition of a linear operator using PROPACK Parameters ---------- A : array_like, sparse matrix, or LinearOperator Operator for which SVD will be computed. If `A` is a LinearOperator object, it must define both ``matvec`` and ``rmatvec`` methods. k : int Number of singular values/vectors to compute which : {"LM", "SM"} Which singular triplets to compute: - 'LM': compute triplets corresponding to the `k` largest singular values - 'SM': compute triplets corresponding to the `k` smallest singular values `which='SM'` requires `irl_mode=True`. Computes largest singular values by default. irl_mode : bool, optional If `True`, then compute SVD using IRL (implicitly restarted Lanczos) mode. Default is `True`. kmax : int, optional Maximal number of iterations / maximal dimension of the Krylov subspace. Default is ``10 * k``. compute_u : bool, optional If `True` (default) then compute left singular vectors, `u`. compute_v : bool, optional If `True` (default) then compute right singular vectors, `v`. tol : float, optional The desired relative accuracy for computed singular values. If not specified, it will be set based on machine precision. v0 : array_like, optional Starting vector for iterations: must be of length ``A.shape[0]``. If not specified, PROPACK will generate a starting vector. full_output : bool, optional If `True`, then return sigma_bound. Default is `False`. delta : float, optional Level of orthogonality to maintain between Lanczos vectors. Default is set based on machine precision. eta : float, optional Orthogonality cutoff. During reorthogonalization, vectors with component larger than `eta` along the Lanczos vector will be purged. Default is set based on machine precision. anorm : float, optional Estimate of ``||A||``. Default is `0`. cgs : bool, optional If `True`, reorthogonalization is done using classical Gram-Schmidt. If `False` (default), it is done using modified Gram-Schmidt. elr : bool, optional If `True` (default), then extended local orthogonality is enforced when obtaining singular vectors. min_relgap : float, optional The smallest relative gap allowed between any shift in IRL mode. Default is `0.001`. Accessed only if ``irl_mode=True``. shifts : int, optional Number of shifts per restart in IRL mode. Default is determined to satisfy ``k <= min(kmax-shifts, m, n)``. Must be >= 0, but choosing 0 might lead to performance degradation. Accessed only if ``irl_mode=True``. maxiter : int, optional Maximum number of restarts in IRL mode. Default is `1000`. Accessed only if ``irl_mode=True``. random_state : {None, int, `numpy.random.Generator`, `numpy.random.RandomState`}, optional Pseudorandom number generator state used to generate resamples. If `random_state` is ``None`` (or `np.random`), the `numpy.random.RandomState` singleton is used. If `random_state` is an int, a new ``RandomState`` instance is used, seeded with `random_state`. If `random_state` is already a ``Generator`` or ``RandomState`` instance then that instance is used. Returns ------- u : ndarray The `k` largest (``which="LM"``) or smallest (``which="SM"``) left singular vectors, ``shape == (A.shape[0], 3)``, returned only if ``compute_u=True``. sigma : ndarray The top `k` singular values, ``shape == (k,)`` vt : ndarray The `k` largest (``which="LM"``) or smallest (``which="SM"``) right singular vectors, ``shape == (3, A.shape[1])``, returned only if ``compute_v=True``. sigma_bound : ndarray the error bounds on the singular values sigma, returned only if ``full_output=True``. >rrz#`which` must be either 'LM' or 'SM'rz#`which`='SM' requires irl_mode=Truer)r/rz.k must be positive and not greater than m or nN iz3kmax must be greater than or equal to k, but kmax (z) < k ()r&r r)orderr/)sizey?zv0 must be of length g?z0shifts must satisfy k <= min(kmax-shifts, m, n)!zshifts must be >= 0!i  z#An invariant subspace of dimension z was found.zk=z0 singular triplets did not converge within kmax=z iterations) rupper ValueErrorrr/char_lansvd_irl_dict _lansvd_dictKeyErrorr iscomplexobjemptycomplexfloatr,minr1uniformsqrtfinfoepsarraylowerintboolmaxint32isupper_which_converterrconjT)+rkwhichirl_modekmax compute_u compute_vv0 full_outputtoldeltaetaanormcgselr min_relgapshiftsmaxiter random_stateaprodtyp lansvd_irllansvdr$r jobujobvuvdoptionioption blocksizelworkliworkworkiworkdparmr(zworkworkssigmabndinfos+ rrrRs~&l33L KKMME L  >??? @ >??? 1IIE + C #%c* c" ### ?28AS111 2 2 '(7##(CC(5//&C%c* c"# ;DAq A1s1ayy==IJJJ |!t q1ua!eT " "D axx + + +&' + + +,, ,  $33D $33D !TAXc555A !T#S111A  z&&A&..!!!Q$ ?28AS111 2 2 9 aaadGGGrL00a0888 8GGG :AaaadGG : : :8Q8899 9 : } )** {hsmm4' C(E3z:#))++NNN >AXF s4&=!Q'' ' '<== = aZZ344 4(E3.ciikkBBBhDIIDII7sCCCGIIA$4,q03 dF4K!D& 1 $ c!Qii 4!4!!4A$4,q03q1uafqj3I3II4! 8E - - -D HV28 , , ,E HQciikk * * *E HQbh ' ' 'E {{}}QAS111eU"e P!+,rsf   )//////000000$$$$$$                      BBBBBBBB>15JK8