TY - GEN
T1 - A note on the degrees of freedom in an experimental design model based on an orthonormal system
AU - Ukita, Yoshifumi
AU - Matsushima, Toshiyasu
AU - Hirasawa, Shigeichi
PY - 2011/12/23
Y1 - 2011/12/23
N2 - Experiments usually aim to study how changes in various factors affect the response variable of interest. Since the response model used most often at present in experimental design is expressed through the effect of each factor, it is straightforward to ascertain how each factor affects the response variable. However, since the response model contains redundant parameters, we must calculate the degrees of freedom defined by the number of independent parameters in the analysis of variance. In this paper, we show that through a description of experimental design based on an orthonormal system, the response model can be expressed using only independent parameters. Hence, we do not have to calculate the degrees of freedom defined by the number of independent parameters.
AB - Experiments usually aim to study how changes in various factors affect the response variable of interest. Since the response model used most often at present in experimental design is expressed through the effect of each factor, it is straightforward to ascertain how each factor affects the response variable. However, since the response model contains redundant parameters, we must calculate the degrees of freedom defined by the number of independent parameters in the analysis of variance. In this paper, we show that through a description of experimental design based on an orthonormal system, the response model can be expressed using only independent parameters. Hence, we do not have to calculate the degrees of freedom defined by the number of independent parameters.
KW - Fourier transform
KW - analysis of variance
KW - mean square
KW - sum of squares
UR - http://www.scopus.com/inward/record.url?scp=83755206435&partnerID=8YFLogxK
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U2 - 10.1109/ICSMC.2011.6084000
DO - 10.1109/ICSMC.2011.6084000
M3 - Conference contribution
AN - SCOPUS:83755206435
SN - 9781457706523
T3 - Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
SP - 2181
EP - 2185
BT - 2011 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2011 - Conference Digest
T2 - 2011 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2011
Y2 - 9 October 2011 through 12 October 2011
ER -