FAQ       Help    Computation of R/R2 statistics Question ID 118 Category Qlucore Omics Explorer   Analysis Date Created 2016-11-24 15:01:39 Date Updated 2016-11-24 15:10:13 How is the R/R2 statistics value defined in Qlucore Omics Explorer? Answer What Qlucore computes is the "coefficient of partial determination". From en.wikipedia.org/wiki/Coefficient_of_determination we have: ======= The coefficient of partial determination can be defined as the proportion of variation that cannot be explained in a reduced model, but can be explained by the predictors specified in a full(er) model. This coefficient is used to provide insight into whether or not one or more additional predictors may be useful in a more fully specified regression model. The calculation for the partial R2 is relatively straight forward after estimating two models and generating the ANOVA tables for them. The calculation for the partial R2 is: (SSEreduced − SSEfull) / SSEreduced which is analogous to the usual coefficient of determination (SST - SSE) / SST. ======= Related articles Anova in Qlucore Using Limma and Extended Statistics 2-way or two-way Anova Analyzing Flow Cytometry data Biomarker Workbench Convert from R to Qlucore data file format Directional t-test and two group comparison Extended statistics and R Multi group comparison and ANOVA Normalize RNA-seq data in R Open interface to R (API) Statistical tests for the Extended option using the Open R API: Welch, Wilcoxon, Limma, Mann-Whitney Statistsics What data is used in the Two group comparison (t-test) Was this information helpful?   Back to Search Results