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dms
2008 Feb 20
1
Stress with MDS
...the source
code so i don't know what is in the box. Obviously, I got different values
from isoMDS and nmds . I started from the same initial configuration
(cmdscale) and the same parameters (maxit,tol)to compare results.
I tried to compute stress1 by myself and find values closed to nmds with
ndms config, but far away from isoMDS with isoMDS config (plus a strange
increasing value between k=4 and k=5). Could you help me please? I lost
myself...
k isoMDS$stress stress1(isoMDS) nmds$stress stress1(nmds)
2 0,18830413 0.2912164 0.2758062 0.2658789
3 0,11521339 0.1866746 0.1754007 0.1727632
4...