The effect size δ was specified for every data matrix.

Heat maps originated in 2D displays of the values in a data matrix.

Recommender system, in which case the data matrix has missing values and the approximation is categorical.

Suppose the ensemble matrix and the data matrix are as above.

We also constructed two non-overlapping subsets of the total data matrix.

Subtract the empirical mean vector u from each column of the data matrix X.

This array is usually called the data matrix.

The data matrix has genes in rows and arrays in columns.

So we extract those rows from our data matrix where p t takes the value 1 or 0.

This problem corresponds to estimating the rank of the data matrix.