I'm using R 1.7.1 under linux redhat it seems that the eigen values produced by eigen() do not follow a consistant order; I mean either ascending or discending
e.g for one system: eigenV<-eigen(V) > print(eigenV$values) [1] -7.706828e+13 -4.702980e+13 -3.267579e+13 -1.701297e+13 -8.041677e+12 [6] -5.707311e+12 -5.053941e+12 -4.774652e+12 -4.280423e+12 -3.798905e+12 [11] -3.422172e+12 -3.148595e+12 -2.974540e+12 -2.881025e+12 -2.730044e+12 [16] -2.476652e+12 -2.216184e+12 -1.996965e+12 -1.852241e+12 -1.419131e+12 [21] -1.307872e+12 -1.248930e+12 -1.244060e+12 -1.092555e+12 -1.069742e+12 [26] -1.064907e+12 -1.007863e+12 -9.894342e+11 -9.459110e+11 -8.017146e+11 [31] -5.619008e+11 -5.443052e+11 -3.834215e+11 -7.530864e+10 -2.820257e+10 [36] -1.757125e+10 -5.503488e+09 -2.225226e+09 -1.106936e+09 -1.035204e-05 > -7.706828e+13 > -1.035204e-05 [1] FALSE for anther system: eigenV<-eigen(V) > print(eigenV$values) [1] -8.564110e-03 -1.486071e+08 -8.200752e+08 -2.033989e+09 -3.166960e+09 [6] -9.511769e+09 -1.067173e+10 -1.207226e+10 -3.779904e+10 -6.752452e+10 [11] -1.717127e+11 -1.781890e+11 -1.887900e+11 -2.566200e+11 -2.908604e+11 [16] -4.027630e+11 -4.813731e+11 -5.072795e+11 -7.635460e+11 -8.442470e+11 [21] -8.938820e+11 -9.533737e+11 -1.038059e+12 -1.155368e+12 -1.297694e+12 [26] -1.502400e+12 -1.577757e+12 -1.748035e+12 -1.948777e+12 -2.234958e+12 [31] -2.586261e+12 -2.635164e+12 -2.705431e+12 -2.714573e+12 -3.189646e+12 [36] -3.313364e+12 -3.405791e+12 -4.951881e+12 -5.396912e+12 -5.681758e+12 [41] -5.964839e+12 -6.782151e+12 -7.234084e+12 -7.328940e+12 -7.421814e+12 [46] -8.129555e+12 -8.226702e+12 -9.268597e+12 -1.003589e+13 -1.076822e+13 [51] -1.136816e+13 -1.456318e+13 -1.903689e+13 -3.804764e+13 -6.641937e+13 [56] -1.547690e+14 > -8.564110e-03 > -1.547690e+14 [1] TRUE what worries me now is that whether the order of the eigen vectors follow the corresponding eigen values or not????? THIS IS OF PRIME IMPORTANCE. any help is very much appreciated best regards Karim ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
