Transforming a dataset into one with fewer columns is more complicated than it might seem, explains Dr. James McCaffrey of Microsoft Research in this full-code, step-by-step machine learning tutorial.

result in a principal component analysis. The output includes all the eigenvalues and the pattern matrix for eigenvalues greater than one. proc factor data=raw method=principal scree mineigen=0 score ...

Xinjiang long-staple cotton is widely used in the production of high-end textiles due to its excellent quality. However, ...

This study focuses on the analysis of polysaccharide residues from the cell walls of fruits and vegetables: tomato, potato, pumpkin, carrot and celery root. An alcohol-insoluble residue was prepared ...