A data matrix, X, with a zero empirical mean indicates that the average of all elements in the matrix equals zero. The empirical mean, often referred to as the sample average, is calculated by summing all values in the matrix and dividing by the number of elements. For example, a matrix containing both positive and negative values that balance each other out can achieve a zero empirical mean. Understanding this concept is crucial for statistical analysis and data normalization.
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It would help if would supply context. I presume empirical mean is a term for sample average, but I can't be sure.DUET said:Consider a data matrix, X, with zero empirical mean.
What is zero empirical mean?
Could someone please give me an example of such matrix?