Mixture Design Tutorial (Part 1 – The Basics) - Statease.info

Again, right click the top of the column now labeled Id, but this time select Sort byDesign ID. Now you get a feel for where the points are located and which ones arereplicated. (Run order is randomized and thus differs from what’s shown below.)Initial design sorted by ID with point type shown (run order randomized)The experimenters ran an additional centroid point, so in the box to the left of Id 0(Type: “Center”) right-click and select Duplicate.Duplicating the centroidWhenever you insert, delete or duplicate rows, always right-click the Run columnheaderand chose Randomize.Re-randomizing the run orderA box will pop up asking if you’d like all blocks to be randomized. In this case there isonly one block, so simply press OK. Notice that run numbers now change.6 • Mixture Tutorial – Part 1 Design-Expert 7 User’s Guide