what is the use of z transformation before pca is z-transformation necessary for pca why use likert scale in a pca why standardize ordinal variables before running a pca what is z transform can you standardize a likert scale does it make sense to standardize all ordinal variables before running pca when is pca z transform used which scale of the likert scale does a pca have? can ordinal variables be standardized before running a pca which pca is needed for likert scale questions how do you perform likert scale in pca why z transformation is useful is z-transformation needed for likert why standardize pca which of the following is true about likert scale questions? what makes a pca work can you perform z transformation before pca in sql which type of questions can be z-transformed what is z-transformation of likert's scale question