search for: values__________________

...== Number of times each test is run__________________________: 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 elimina...

...__________________________: 3 > > I. Matrix calculation > --------------------- >Creation, transp., deformation of a 1500x1500 matrix (sec): >1.97333333333333 >800x800 normal distributed random matrix ^1000______ (sec): >2.80999999999999 >Sorting of 2,000,000 random values__________________ (sec): >1.20333333333333 >700x700 cross-product matrix (b = a' * a)___________ (sec): >1.84000000000000 >Linear regression over a 600x600 matrix (c = a \ b') (sec): >2.43666666666666 > -------------------------------------------- >...

...========== Number of times each test is run__________________________: 3 I. Matrix calculation --------------------- Creation, transp., deformation of a 2500x2500 matrix (sec): 2.69466666666667 2400x2400 normal distributed random matrix ^1000____ (sec): 1.42433333333333 Sorting of 7,000,000 random values__________________ (sec): 2.34466666666667 2800x2800 cross-product matrix (b = a' * a)_________ (sec): 33.187 Linear regr. over a 3000x3000 matrix (c = a \ b')___ (sec): 14.52 -------------------------------------------- Trimmed geom. mean (2 extremes eliminated): 4.51008013606039 II. Matrix functions ------...

...========= Number of times each test is run__________________________: 3 I. Matrix calculation --------------------- Creation, transp., deformation of a 2500x2500 matrix (sec): 1.237 2400x2400 normal distributed random matrix ^1000____ (sec): 0.861333333333333 Sorting of 7,000,000 random values__________________ (sec): 1.09133333333333 2800x2800 cross-product matrix (b = a' * a)_________ (sec): 1.55633333333333 Error in solve(crossprod(a), crossprod(a, b)) : the leading minor of order 1271 is not positive definite Timing stopped at: 2.55 0.04 0.729 I was also unable to exit from R cleanly. I tri...

...========== Number of times each test is run__________________________: 3 I. Matrix calculation --------------------- Creation, transp., deformation of a 2500x2500 matrix (sec): 2.69466666666667 2400x2400 normal distributed random matrix ^1000____ (sec): 1.42433333333333 Sorting of 7,000,000 random values__________________ (sec): 2.34466666666667 2800x2800 cross-product matrix (b = a' * a)_________ (sec): 33.187 Linear regr. over a 3000x3000 matrix (c = a \ b')___ (sec): 14.52 -------------------------------------------- Trimmed geom. mean (2 extremes eliminated): 4.51008013606039 II. Matrix functions ------...

...;, "b") flush.console() # (3) cumulate <- 0; b <- 0 for (i in 1:runs) { a <- rnorm(1100000) timing <- system.time({ b <- sort(a) })[3] cumulate <- cumulate + timing } timing <- cumulate/runs times[3, 1] <- timing cat(c("Sorting of 1,100,000 random values__________________ (sec): ", = timing, "\n")) remove("a", "b") flush.console() # (4) cumulate <- 0; b <- 0 for (i in 1:runs) { a <- rnorm(550*550); dim(a) <- c(550, 550) timing <- system.time({ b <- crossprod(a, a) # equivalent to: b <- t(a) %*% a })...