search for: belowsolv

Displaying 5 results from an estimated 5 matches for "belowsolv".

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2016 Apr 20
6
Solving sparse, singular systems of equations
...for x, Error in LU.dgC(a) : cs_lu(A) failed: near-singular A (or out of memory)solve(A,b,sparse=TRUE,tol=.Machine$double.eps) #one x that happens to solve Ax = bx = matrix(c(-10,10,0),nrow=3,ncol=1)A %*% x #Error in lsfit(A, b) : only 3 cases, but 4 variableslsfit(A,b)#solves the system, but fails belowsolve(qr(A, LAPACK=TRUE),b)#Error in qr.solve(A, b) : singular matrix 'a' in solveqr.solve(A,b) #matrices used in my actual problem (see attached files)A = readMM("A.txt")b = readMM("b.txt") #Error in as(x, "matrix")[i, , drop = drop] : subscript out of boundssolve(...
2016 Apr 20
0
Solving sparse, singular systems of equations
...ror in LU.dgC(a) : cs_lu(A) failed: near-singular A (or out of memory)solve(A,b,sparse=TRUE,tol=.Machine$double.eps) > #one x that happens to solve Ax = bx = matrix(c(-10,10,0),nrow=3,ncol=1)A %*% x > #Error in lsfit(A, b) : only 3 cases, but 4 variableslsfit(A,b)#solves the system, but fails belowsolve(qr(A, LAPACK=TRUE),b)#Error in qr.solve(A, b) : singular matrix 'a' in solveqr.solve(A,b) > #matrices used in my actual problem (see attached files)A = readMM("A.txt")b = readMM("b.txt") > #Error in as(x, "matrix")[i, , drop = drop] : subscript out of bo...
2016 Apr 20
0
Solving sparse, singular systems of equations
...) : cs_lu(A) failed: near-singular A (or > out of memory)solve(A,b,sparse=TRUE,tol=.Machine$double.eps) > #one x that happens to solve Ax = bx = matrix(c(-10,10,0),nrow=3,ncol=1)A > %*% x > #Error in lsfit(A, b) : only 3 cases, but 4 variableslsfit(A,b)#solves the > system, but fails belowsolve(qr(A, LAPACK=TRUE),b)#Error in qr.solve(A, b) > : singular matrix 'a' in solveqr.solve(A,b) > #matrices used in my actual problem (see attached files)A = > readMM("A.txt")b = readMM("b.txt") > #Error in as(x, "matrix")[i, , drop = drop] : subscript...
2016 Apr 20
0
Solving sparse, singular systems of equations
...dgC(a) : cs_lu(A) failed: near-singular A (or >out of memory)solve(A,b,sparse=TRUE,tol=.Machine$double.eps) >#one x that happens to solve Ax = bx = >matrix(c(-10,10,0),nrow=3,ncol=1)A %*% x >#Error in lsfit(A, b) : only 3 cases, but 4 variableslsfit(A,b)#solves >the system, but fails belowsolve(qr(A, LAPACK=TRUE),b)#Error in >qr.solve(A, b) : singular matrix 'a' in solveqr.solve(A,b) >#matrices used in my actual problem (see attached files)A = >readMM("A.txt")b = readMM("b.txt") >#Error in as(x, "matrix")[i, , drop = drop] : subscript out...
2016 Apr 20
1
Solving sparse, singular systems of equations
...ror in LU.dgC(a) : cs_lu(A) failed: near-singular A (or out of memory)solve(A,b,sparse=TRUE,tol=.Machine$double.eps) > #one x that happens to solve Ax = bx = matrix(c(-10,10,0),nrow=3,ncol=1)A %*% x > #Error in lsfit(A, b) : only 3 cases, but 4 variableslsfit(A,b)#solves the system, but fails belowsolve(qr(A, LAPACK=TRUE),b)#Error in qr.solve(A, b) : singular matrix 'a' in solveqr.solve(A,b) > #matrices used in my actual problem (see attached files)A = readMM("A.txt")b = readMM("b.txt") > #Error in as(x, "matrix")[i, , drop = drop] : subscript out of bo...