====== Scaling ====== == Description == Data scaling, using different methods and the possibility to use the log2 or log10 transformation. See [[http://www.biomedcentral.com/1471-2164/7/142/table/T1|scaling methods]] * Van den Berg R. et al. (2006). Centering, scaling, and transformations: improving the biological information content of metabolomics data. BMC Genomics, 7:142 \\ ---- \\ == Usage == {{:default:scaling_gui.png?nolink|}} ^Field ^Description ^ |Launch | Field indicating whether you want to execute this analysis in the workflow (checked) or not (unchecked).| //to finish ...// \\ ---- \\ == Output Examples == {{ ::samples_boxplot.png.png?direct&600 |}} {{ ::scaling_qq_kde.png.png?direct&400 |}} Normality Test before scaling: Lilliefors (Kolmogorov-Smirnov) normality test data: vec D = 0.2771, p-value < 2.2e-16 Normality Test after scaling: Lilliefors (Kolmogorov-Smirnov) normality test data: vec D = 0.0668, p-value < 2.2e-16