Can I reverse the sign on some of my PCA factor scores and how can I justify this?
8333
Does the sign of scores or of loadings in PCA or FA have a meaning? May I reverse the sign?
20825
Weird badge (probably encoding issue)
49318
Negative sign in rotation operator again
101544
Method to reverse a Kronecker product
4244
How to compute PCA scores from eigendecomposition of the covariance matrix?
12090
On Negative AIC Values
97191
Reversed numbers with bidi and mathspec
126886
Do the principal components change if we apply PCA more than once (recursively) on data?
7779
How does centering the data get rid of the intercept in regression and PCA?
133825
Reorder levels of a factor without changing order of values
118124
How to reconcile z-scores into a number from -1 to 1?
91812
Using inverse of transpose matrix to cancel out terms?
79763
What do empty (missing) values in the output of PCA or factor analysis mean in R?
48567
Skewed variables in PCA or factor analysis
112134
What are principal component scores?
36609
Creating a single index from several principal components or factors retained from PCA/FA
92998
Retract accidental checkin