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With matrix cases we mean the number of different cases in the table. For instance, if you have a 3D space description, for each x value you have a table of y,z values. If you put this in a data set, you get columns of x, y and z values like this:
If you ask for the number of matrix cases of x, you get 3 (and not 9), because there are 3 x-coordinates
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NRCASES("Components.Q=40.8") returns the first case number of which the value of Q in object/Telitab$ Components equals 40.8, the rounded values (as presented in the workbase) are compared, no prefix possible
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