PCA
From Ufldl
(→Example and Mathematical Background) |
(→Example and Mathematical Background) |
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variation of the data, and <math>\textstyle u_2</math> the secondary direction of variation: | variation of the data, and <math>\textstyle u_2</math> the secondary direction of variation: | ||
| - | + | [[File:PCA-u1.png | 600px]] | |
I.e., the data varies much more in the direction <math>\textstyle u_1</math> than <math>\textstyle u_2</math>. | I.e., the data varies much more in the direction <math>\textstyle u_1</math> than <math>\textstyle u_2</math>. | ||
