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Helper function to generate default parameters for PCA

params_pca_defaults.Rd

Helper function to generate default parameters for PCA

Usage

params_pca_defaults()

Value

A list with the following parameters for PCA.

  • no_pcs - Integer. Number of PCs to consider. Defaults to 30L.

  • random_svd - Boolean. Shall randomised SVD be used. Defaults to TRUE.

  • sparse - Boolean. Shall sparse solvers be used that do not do scaling. If set to yes, in the case of random_svd = FALSE, Lanczos iterations are used to solve the sparse SVD. With random_svd = TRUE, the sparse initial matrix is multiplied with the random matrix, yielding a much smaller dense matrix that does not increase the memory pressure massively.