Multiply Columns

You can multiply one or more columns together to create new columns in the Design Matrix. You will be asked for the 2 blocks of columns to multiply. For each block, enter the starting and ending columns that specify the block. The range of columns can be 1 or more columns. For example, to multiple column 3 and column 4, specify 3 to 3 for the first block, and 4 to 4 for the second block. To multiply columns 3 and 4 with columns 5 and 6 to create 4 new columns, specify 3 to 4 for the first block, and 5 to 6 for the second block. The new column(s) will be inserted after the last column of the second block.

The menu choice to multiply columns is FillCol | Product. See Product of Columns for an example.