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Brief description

All values in the specified columns are transformed according to the given formula.

Output: The output matrix has the same structure as the input matrix. Values in the selected columns will be transformed.



The specified transformation formula (default: log2(x)) that should be applied to all cells in the selected columns. The variable name is “x”. Numbers with “.” as decimal point, “+”, “-”, “*”, “/” and “^” can be used as well as scientific notation (e.g. 2.9e-15) is supported. Predefined functions can also be used, whose argument has to be enclosed by round brackets, e.g. sin(2*x).


Selected expression and/or numerical columns, where the transformation should be applied (default: all columns are selected).

Parameter window

Perseus pop-up window: Basic -> Transform

perseus/user/activities/matrixprocessing/basic/transformationproc.txt · Last modified: 2015/11/23 14:47 (external edit)