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Modify by column


Brief description

Modify all columns by the specified action and column.

Output: Normalized expression matrix.



Selected expression/numerical column(s) that should be modified by the values of the “Control column” using the the action specified in “Modify by” (default: all expression columns are selected).

Control column

One expression/numerical column that is used to modify all selected expression/numerical columns in the field “Columns” using the action specified in “Modify by” (default: first expression column in the matrix).

Modify by

Defines the operation that is applied between the selected “Columns” and the “Control column” (default: Subtraction). The operation can be chosen from a predefined list of operations:

  • Addition
  • Multiplication
  • Subtraction
  • Division

Parameter window

Perseus pop-up window: Normalization -> Modify by column

perseus/user/activities/matrixprocessing/normalization/normalizebycolumn.txt · Last modified: 2015/12/09 16:29 by temu