achieves_planned_objective total intensity transformation single Philippe Rocca-Serra A total intensity transformation single is a data transformation that takes as input an n-dimensional (real) vector and multiplies each component of this vector by a coefficient, where the coefficient is obtained by taking the sum of the input components or of a subset of these, multiplied by a constant of choice. Elisabetta Manduchi Helen Parkinson James Malone Melanie Courtot Note that if the word "sum" is replaced by the word "mean" in the definition, the resulting definition is equivalent. OTHER: Adjusted from MGED Ontology This can be used as a simple normalization method for expression microarray assays. For example, each intensity from a one-channel microarray assay is multiplied by a constant so that the output mean intensity over the microarray equals a desired target T (the multiplicative constant in this case is the T/(mean intensity)). total intensity transformation single data normalization objective normalization data transformation ready for release