What is the mean of negative sign in PCA?
8333
Does the sign of scores or of loadings in PCA or FA have a meaning? May I reverse the sign?
55341
The negative integral meaning
45501
Why does the negative sign arise in this thermodynamic relation?
100335
Moving average process notation: negative or positive $\theta$s?
107274
How to read negative radians in the interval?
6316
PCA on correlation or covariance?
118997
What are the four axes on PCA biplot?
3089
Why PCA of data by means of SVD of the data?
144185
Negative y value in polar plot
148463
How do I get the negative sign in the expression for Gravitational Potential Energy?
9286
Questions on PCA: when are PCs independent? why is PCA sensitive to scaling? why are PCs constrained to be orthogonal?
146263
Positive AND Negative reputation show as +-1
28199
Negative values for AICc (corrected Akaike Information Criterion)
112934
Is PCA followed by a rotation (such as varimax) still PCA?
48567
Skewed variables in PCA or factor analysis
10466
Making sense of principal component analysis, eigenvectors & eigenvalues
90302
How do we interpret the results of regression for log transformed data containing negative values, $\log(Y-\min(Y)+1)$?