caNorm function

Correspondence analysis preprocessing

Performs all steps required for CA processing (row profile approach).

caNorm(X, X_dimensions, colTotal, rowTotal, grandTotal, weights = NULL, masses = NULL)

Arguments

• X: Data matrix
• X_dimensions: The dimensions of X in a vector of length 2 (rows, columns). See dim
• colTotal: Vector of column sums.
• rowTotal: Vector of row sums.
• grandTotal: Grand total of X
• weights: Optional weights to include for the columns.
• masses: Optional masses to include for the rows.

Returns

• rowCenter: The barycenter of X.

• masses: Masses to be used for the GSVD.

• weights: Weights to be used for the GSVD.

• rowProfiles: The row profiles of X.

• deviations: Deviations of row profiles from rowCenter.

Author(s)

Derek Beaton