can principal component analysis be used for categorical data? can a principal component analysis be applied to continuous data? can principal component analysis be applied to continuous what is the principal component analysis (pca), used to analyze? can a data set contain both continuous and categorical variables can principal component analysis be used with categorical data? can pca be applied in categorical data can pca be applied to continuous can pca be used for categorical data can principal component analysis be applied to datasets containing both continuous and categorical data can pca use continuous data can pca be applied to continuous variables can principal component analyze continuous and categorical data? can principal component analysis be applied to a dataset containing both continuous data and categorical data? can principal component analysis be applied to a dataset containing both continuous and categorical data? can principal component analysis be applied to a dataset that contains a mix of continuous and categorical variables? can principal component analysis be used for categorical data? how can principal component analysis be used in a dataset can a pca be applied to categorical variables? what dataset does pca work with