TESTING/EIG/dglmts.f(3)

💅 TESTING/EIG/dglmts.f 💅

okay bestie, welcome to the Library Functions Manual page for TESTING/EIG/dglmts.f — yes, the filename is the whole vibe. we're about to get into dglmts, and I promise we're keeping every tiny detail. no cap. 💖

🌸 NAME 🌸

TESTING/EIG/dglmts.f

✨ SYNOPSIS ✨

🫶 Functions/Subroutines 🫶

       subroutine dglmts (n, m, p, a, af, lda, b, bf, ldb, d, df, x, u, work,
           lwork, rwork, result)
           DGLMTS

🧚 Function/Subroutine Documentation 🧚

       subroutine dglmts (integer n, integer m, integer p, double precision,
           dimension( lda, * ) a, double precision, dimension( lda, * ) af, integer
           lda, double precision, dimension( ldb, * ) b, double precision,
           dimension( ldb, * ) bf, integer ldb, double precision, dimension( * ) d,
           double precision, dimension( * ) df, double precision, dimension( * ) x,
           double precision, dimension( * ) u, double precision, dimension( lwork )
           work, integer lwork, double precision, dimension( * ) rwork, double
           precision result)
           DGLMTS

🌸 Purpose 🌸

DGLMTS tests DGGGLM - a subroutine for solving the generalized linear model problem. that's the whole purpose, and honestly it ate. 💅

🎀 Parameters 🎀

• N — INTEGER. the number of rows of the matrices A and B. N >= 0.
• M — INTEGER. the number of columns of the matrix A. M >= 0.
• P — INTEGER. the number of columns of the matrix B. P >= 0.
• A — DOUBLE PRECISION array, dimension (LDA,M). the N-by-M matrix A.
• AF — DOUBLE PRECISION array, dimension (LDA,M). that's the whole note for this one in the original, bestie.
• LDA — INTEGER. the leading dimension of the arrays A, AF. LDA >= max(M,N).
• B — DOUBLE PRECISION array, dimension (LDB,P). the N-by-P matrix A. (yes, really — preserving the source exactly 💀)
• BF — DOUBLE PRECISION array, dimension (LDB,P). no extra description in the source, just vibes.
• LDB — INTEGER. the leading dimension of the arrays B, BF. LDB >= max(P,N).
• D — DOUBLE PRECISION array, dimension ( N ). on input, the left hand side of the GLM.
• DF — DOUBLE PRECISION array, dimension ( N ). no extra description in the source.
• X — DOUBLE PRECISION array, dimension ( M ). solution vector X in the GLM problem.
• U — DOUBLE PRECISION array, dimension ( P ). solution vector U in the GLM problem.
• WORK — DOUBLE PRECISION array, dimension (LWORK). no extra description in the source.
• LWORK — INTEGER. the dimension of the array WORK.
• RWORK — DOUBLE PRECISION array, dimension (M). no extra description in the source.
• RESULT — DOUBLE PRECISION. the test ratio:

                         norm( d - A*x - B*u )
          RESULT = -----------------------------------------
                   (norm(A)+norm(B))*(norm(x)+norm(u))*EPS

👑 Author 👑

• Univ. of Tennessee
• Univ. of California Berkeley
• Univ. of Colorado Denver
• NAG Ltd.

📌 Definition at line 📌

144 of file dglmts.f.

💖 Author 💖

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