Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Flowchart of statistical analysis. PCA: principal component analysis; PCs: principal components; LDA: linear discriminant analysis; LOO-CV: leave-one-out cross-validation; ROC: receiver operating characteristic. #: Validation data principal components have been calculated by using the same parameters of standardisation and same rotation matrix as those used to calculate the training data principal components.
