BUCHI NIRWare - Manual (Page 53)

NIRWare 1.5 Software Manual Tutorial
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the multidimensional space. In other words: we have to check if the overlap is only a question of
perspective.
For this purpose, we select a projection to PC1 vs. PC3.
Notice that we see an overlap again, but of different clusters. The overlap from the first projection is now
resolved. This proves that the four clusters are in fact separated from each other.
This can be clearly demonstrated by using a 3D- instead of a 2D-projection:
Select from the menu ‘Graphics – Scores – 3D-Scatter’, and have a look at a 3D-projection on PC 1, 2
and 3