In MATLAB a collection of data values (for example, numbers or text values) with both rows and columns (2 dimensional) is called ? In MATLAB, when working with an array, the application needs information in order to perform calculations. It needs to know which rows or columns to use if you don't want to work with the entire set. MATLAB uses what to tell the system which rows or columns to use? What are the four layers of the Data Analysis Triangle, from bottom to top? Referencing the Data Triangle, data is: In MATLAB a single data point is called?