Displaying 5 results from an estimated 5 matches for "550x550".
2002 Oct 09
0
R 1.6.0 benchmark with and without optimized ATLAS
...___________: 3
I. Matrix calculation
---------------------
Creation, transp., deformation of a 1200x1200 matrix (sec):
0.973333333333333
1250x1250 normal distributed random matrix ^1000____ (sec):
2.25333333333333
Sorting of 1,100,000 random values__________________ (sec):
0.463333333333335
550x550 cross-product matrix (b = a' * a)___________ (sec):
0.463333333333331
Linear regression over a 700x700 matrix (c = a \ b') (sec): 1.75
--------------------------------------------
Trimmed geom. mean (2 extremes eliminated):
0.924125732935107
II. M...
1999 Dec 29
1
Large data files
Dear R and S-Plus users:
Currently I am using:
at work: "S-Plus 2000 Pro" on a PC: Pentium II/350MHz, 256 MB RAM,
running Win NT
at home: "R" on my Mac PowerBook G3/292MHz, 128 MB RAM, running LinuxPPC
Currently, at home I am trying to import a table(nrow=302500, ncol=6)
which I have to do
for each column extra because of memory problems. I have partially to
use the columns,
2001 Apr 27
2
Benchmarking R, why sort() is so slow?
...done in
approx. 1 sec on the reference computer with the reference software being
Matlab 6.0 R12 (column C).
Serie I: Matrix calculation
1 = Creation, transposition, deformation of a 1200x1200 matrix, 2 =
1250x1250 normal distributed random matrix ^1000, 3 = Sorting of 1,100,000
random values, 4 = 550x550 cross-product matrix (b = a' * a), 5 = Linear
regression over a 700x700 matrix (b = a \ b')
Serie II: Preprogrammed matrix functions
6 = FFT over 900,000 random values, 7 = Eigenvalues of a 220x220 random
matrix, 8 = Determinant of a 750x750 random matrix, 9 = Cholesky
decomposition of a...
2001 Apr 27
2
Benchmarking R, why sort() is so slow?
...done in
approx. 1 sec on the reference computer with the reference software being
Matlab 6.0 R12 (column C).
Serie I: Matrix calculation
1 = Creation, transposition, deformation of a 1200x1200 matrix, 2 =
1250x1250 normal distributed random matrix ^1000, 3 = Sorting of 1,100,000
random values, 4 = 550x550 cross-product matrix (b = a' * a), 5 = Linear
regression over a 700x700 matrix (b = a \ b')
Serie II: Preprogrammed matrix functions
6 = FFT over 900,000 random values, 7 = Eigenvalues of a 220x220 random
matrix, 8 = Determinant of a 750x750 random matrix, 9 = Cholesky
decomposition of a...
2001 Feb 16
1
Sub_scribe and a question
...done in
approx. 1 sec on the reference computer with the reference software being
Matlab 6.0 R12 (column C).
Serie I: Matrix calculation
1 = Creation, transposition, deformation of a 1200x1200 matrix, 2 =
1250x1250 normal distributed random matrix ^1000, 3 = Sorting of 1,100,000
random values, 4 = 550x550 cross-product matrix (b = a' * a), 5 = Linear
regression over a 700x700 matrix (b = a \ b')
Serie II: Preprogrammed matrix functions
6 = FFT over 900,000 random values, 7 = Eigenvalues of a 220x220 random
matrix, 8 = Determinant of a 750x750 random matrix, 9 = Cholesky
decomposition of a...