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Statistical Experimental Design and Analysis<br />

Example of Analysis Results<br />

Ordered Data Table<br />

------------------<br />

Response Y : OSCFREQ<br />

Mean Value<br />

: 4.8667e+07<br />

Value at nominal point : 4.8667e+07<br />

==> Vertical axis: the ordered raw response<br />

value for each of the 72 runs in the experiment.<br />

Horizontal Axis: the corresponding dummy variable index (1 to 34)<br />

with settings (-1 or +1) for each of the 34 factors.<br />

Run N1 N2 N3 N4 ... N29 N30 N31 N32 N33 N34 Response Y<br />

4 +1 -1 -1 -1 +1 -1 +1 +1 +1 -1 4.1226377e+07<br />

56 -1 +1 +1 -1 +1 -1 +1 +1 +1 +1 4.1369450e+07<br />

31 -1 -1 +1 -1 -1 -1 -1 +1 +1 +1 4.2162628e+07<br />

72 +1 +1 -1 -1 -1 -1 -1 -1 -1 +1 4.2545442e+07<br />

15 -1 -1 +1 -1 -1 +1 +1 -1 +1 +1 4.2712903e+07<br />

61 +1 +1 -1 +1 +1 +1 -1 +1 -1 +1 4.3002165e+07<br />

11 +1 -1 +1 -1 +1 +1 -1 +1 +1 -1 4.3099024e+07<br />

14 -1 +1 -1 +1 +1 +1 -1 +1 +1 -1 4.3174847e+07<br />

19 -1 -1 +1 -1 ... +1 -1 -1 -1 -1 +1 4.3490089e+07<br />

...<br />

DEX Mean Table<br />

A DEX mean table provides the ranked list of factors (not including the interactions). The<br />

ranking is from the most important factor to least important factor. This table is appropriate for<br />

analyzing data from an experiment, with respect to important factors, where the factors are at<br />

two levels. The table gives the mean value and the amplitude of the main effect coefficient (a<br />

line proportional to this magnitude is also printed).<br />

Note<br />

Note that the magnitude represents the absolute value of the coefficient α i .<br />

This qualitative analysis can be found in the .dex file as follows (the central part has been<br />

removed):<br />

Eldo® User's Manual, 15.3 583

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