| Author | Message | ||
     Fernando Morgado (fmorgado) New member Username: fmorgado Post Number: 4 Registered: 12-2005 |
Hello : Always remember NIR and MID ( IR) work with chemical bonds. Any NIR or IR Instruments only see bonds, probably your samples have similar chemical composition, for that reason the samples are grouped together. Is possible the soil are realy diferent, but if this diferences can not �see� by NIR o IR you always obtain samples grouped. Fernando Morgado | ||
| Hongtu Xie (tonali) Member Username: tonali Post Number: 14 Registered: 2-2010 |
Dear all, I have another basic quesion. I used Ward's algorithm of clasuter analysis to calculate the Euclidean distance of soil Mid infrared spectra. I found most of soil types grouped together. Except for soil properties, what's the other facors which affect the similarity/heterogeneity in cluster analysis should be considered. Thanks Best regards! Hongtu |