ASCAF: Indicator matrix for ASCA example.
In MetStaT: Statistical metabolomics tools

The matrix ASCAF gives the factor/treatment combinations for the rows of the data matrix ASCAX.

1	data(ASCAdata)

The format is:
numerical matrix of dimension 60 2

Each column in ASCAF represents a factor, the numbers in the columns correspond to the treatment level of that factor. In this example, the first factor has two treatment levels, indicated by 1 and 2 in the first column of ASCAF. The second factor has three treatment levels, indicated by the numbers 1, 2 and 3 in the second column. As an example, the two numbers 1 1 in the first row of ASCAF indicate that the first measurement was made on a sample in treatment level 1 for both factors.

MetStaT documentation built on May 2, 2019, 1:45 p.m.